View source for Bill

:''This article is about the Pokémon Researcher. For the English voice actors, see [[Bill Rogers]], [[Billy Regan]] or [[Carter Cathcart|Billy Beach]].''
----
{{CharInfobox
|color={{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color}}|1={{Johto color}}}}
|corecolor={{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}
|bordercolor={{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}
|name=Bill
|jname=ソネザキマサキ
|tmname=Masaki Sonezaki
|slogan=no
|image=FireRed LeafGreen Bill.png
|size=125px
|caption=Art from {{2v2|FireRed|LeafGreen}}
|age=no
|years=
|gender=Male
|colors=yes
|eyes=Brown{{tt|*|Gen III artwork}}, Black{{tt|*|Anime, older artwork}}
|hair=Brown{{tt|*|Games}}, Green{{tt|*|Anime}}
|birthday=December 31st{{tt|*|Pokémon Adventures}}
|hometown=[[Goldenrod City]]
|region=[[Johto]]
|relatives=Mother, Sister, [[Bill's grandfather|Grandpa]]
|trainer=yes
|trainerclass={{tc|Poké Maniac}}, [[Pokémon Storage System|Storage System developer]]
|game=yes
|generation={{Gen|I}}, {{Gen|II}}, {{Gen|III}}, {{Gen|IV}}
|games=[[Pokémon Red and Blue Versions|Red, Blue]], {{v2|Yellow}}, [[Pokémon Gold and Silver Versions|Gold, Silver]], {{v2|Crystal}}, [[Pokémon FireRed and LeafGreen Versions|FireRed, LeafGreen]], [[Pokémon HeartGold and SoulSilver Versions|HeartGold, SoulSilver]]
|leader=no
|anime=yes
|epnum=EP013
|epname=Mystery at the Lighthouse
|enva=[[Maddie Blaustein|Adam Blaustein]]
|java=Masaya Onosaka
|manga=counterpart
|mangacounterpart={{adv|Bill}}
}}
'''Bill''' (Japanese: '''ソネザキマサキ''' ''Masaki Sonezaki'') is a {{OBP|Pokémon|species}} Researcher, widely regarded as an expert in many fields. He has made many appearances in the games. Bill is most commonly found in his [[Sea Cottage]], which is north of [[Cerulean City]] at the end of {{rt|25|Kanto}}. He is most notable for his first appearance in the [[Generation I]] games and for his [[Pokémon Storage System]] that has been pertinent in the entire main series.

==In the games==
Bill is a talented and famous inventor, who invented the original Pokémon Storage System and [[Time Capsule]]. People, including himself, call him a PokéManiac because of his large collection of both common and rare Pokémon. The first one he caught was an {{p|Abra}}; however, his favorite Pokémon are {{p|Eevee}} and its [[Eeveelution|evolutions]]. Bill also gives a free Eevee to {{ga|Ethan}}, {{ga|Kris}}{{sup/2|C}}, or {{ga|Lyra}}{{sup/4|HGSS}} in [[Generation II]] and its remakes, and another one to [[Bebe]] in [[Generation IV]], which is later given to {{ga|Lucas}}/{{ga|Dawn}}.

Bill also has several friends that share his interests in computer technology. One of them is [[Celio]], his old friend from {{OBP|One Island|town}} in the [[Sevii Islands]]. He is also close with [[Lanette]] and [[Bebe]], the storage system developers of [[Hoenn]] and [[Sinnoh]], respectively. He is stated to have requested [[Cassius]] control the Storage System of [[Kalos]] in [[Generation VI]].

Bill also has some fans, like {{tc|Poké Maniac|PokéManiac}} Brent of Generation II who calls the player with information about him. Most of his calls are trivia about Bill himself and his family, such as the fact that Bill's mother used to be a [[Kimono Girl]] and that Bill's younger sister can't wink. He also mentions that Bill might have a crush on the flower girl in [[Goldenrod City]]. Brent also revealed the fact that Bill is lactose-intolerant, which was also stated by Celio in [[Generation III]].

Bill has been shown to have a large family. His adult sister and grandfather live in [[Fuchsia City]]. In Generation II, his grandfather watches over Bill's cottage on Route 25 while he is visiting the rest of his family in Goldenrod City.

In the Japanese versions of the games, Bill speaks in Kansai dialect like most Goldenrod City natives.

===[[Generation I]]===
In {{game2|Red|Blue|Yellow}}, Bill can be found at the [[Cerulean Cape]], initially performing an experiment on Pokémon teleportation. However, Bill accidentally becomes combined with the body of a [[Pokémon (species)|Pokémon]] and requires the player's help to fix the problem. In Pokémon Yellow, {{ga|Red's Pikachu|the player's Pikachu}} [[Walking Pokémon#Pokémon Yellow|will be confused]] by the whole ordeal, and shocked upon seeing Bill return back to his original form. After things are back in order, he speaks about his Pokémon Storage System and what was formerly on the PC menu as "Someone's PC" will change to "Bill's PC." He will also give away an {{key|I|S.S. Ticket}} so that the player can board the [[S.S. Anne]]. He gives the player the ticket as a gift for changing him back into a human, and also claims that the rich crowd of the S.S. Anne isn't his type. If the player exits Bill's house and goes back in, they can check his computer for information on {{p|Eevee}} and its three [[Evolutionary stone|stone]] evolutions, his favorite Pokémon.
====Quotes====
:''"Hiya! I'm a <sc>Pok</sc>é<sc>mon</sc>... ...No I'm not! Call me <sc>Bill</sc>! I'm a true blue <sc>Pok</sc>é<sc>maniac</sc>! Hey! What's with that skeptical look? I'm not joshing you, I screwed up an experiment and got combined with a <sc>Pok</sc>é<sc>mon</sc>! So, how about it? Help me out there!"''
:''"{{tt|No!? Come on, you gotta help a guy in deep trouble! What do you say, chief? Please? OK? All right!|If player refuses}} When I'm in the <sc>Teleporter</sc>, go to my PC and run the Cell Separation System!"''
*After helping him
:''"{{tt|Yeehah! Thanks, bud! I owe you one! So, did you come to see my <sc>Pok</sc>é<sc>mon</sc> collection? You didn't? That's a bummer. I've got to thank you... Oh here, maybe this'll do.|First time}} That cruise ship, <sc>S.S.Anne</sc>, is in <sc>Vermilion City</sc>. Its passengers are all trainers! They invited me to their party, but I can't stand fancy do's. Why don't you go instead of me?"''
*After returning to his house
:''"Look, bud, just check out some of my rare <sc>Pok</sc>é<sc>mon</sc> on my PC!"''

===[[Generation II]]===
In {{game2|Gold|Silver|Crystal}}, Bill is visiting his family in [[Goldenrod City]]. After he gets the [[Time Capsule]] up and running in [[Ecruteak City]], players can visit him at his parents' house in Goldenrod and receive an {{p|Eevee}}. His sister will give the player Bill's number so they can check the storage system.

====Pokemon====
=====Gives away=====
{{Pokémon/2
|game=Crystal
|ndex=133
|pokemon=Eevee
|level=20
|gender=both
|type1=Normal
|move1=Tackle|move1type=Normal
|move2=Tail Whip|move2type=Normal
|move3=Sand-Attack|move3type=Ground
|move4=Growl|move4type=Normal}}

===[[Generation III]]===
====Hoenn====
While visiting [[Lanette]] in {{game2|Ruby|Sapphire|Emerald}}, players can check one of her computers to find an E-mail from Bill. The English translation of the e-mail makes it seem as if Bill is crediting Lanette for upgrading his system, whereas the Japanese text clearly establishes that he and Lanette are co-developers of the original system.

English Letter:
:"''... ... ... ... ... ... ...
:''Your storage system 
:''offers more convenience than mine.
:''It has a lot of user friendly features that
:''make it fun and useful too. It makes me
:''proud that I played a part in its development.
:''Here's hoping that you'll continue
:''research in Storage Systems.
:''From <sc>Bill</sc>
:''... ... ... ... ... ... ... ..."

====Kanto====
[[File:SeaBill.png|thumb|240px||right|Bill as a {{p|Clefairy}} in the Sea Cottage]]
In [[Pokémon FireRed and LeafGreen Versions]], Bill is in the same area as in the original games. However, he also appears on [[Cinnabar Island]] asking for help in the [[Sevii Islands]] shortly after [[Blaine]] is defeated. While on [[Knot Island]], he introduces the player to [[Celio]].

=====Fame Checker=====
This is a list of the [[Fame Checker]]'s information on Bill in {{game|FireRed and LeafGreen|s}}.
;[[Cerulean City]] — {{ga|Blue}}
* What does this person do?
:"After all, <sc>Bill</sc>'s world-famous as a <sc>Pokémaniac</sc>. He invented the <sc>Pokémon</sc> Storage System on PC, too."
;Cerulean City &mdash; Little Boy 
* Favorite kind of <sc>Pokémon</sc>?
:"<sc>Bill</sc> has lots of <sc>Pokémon</sc>! He collects rare ones, too!"
;[[Fuchsia City]] &mdash; Bill's grandfather
* What is this person like?
:"He's my grandson! He always liked collecting things, even as a child!"
;{{OBP|One Island|town}} &mdash; [[Celio]]
* Favorite kind of <sc>Pokémon</sc>?
:""<sc>Bill</sc> is a <sc>Pokémaniac</sc>, so he likes every kind. Apparently, the first one he caught was an <sc>Abra</sc>."
;One Island &mdash; Celio 
* Family and friends?
:"<sc>Bill</sc>'s hometown is <sc>Goldenrod City</sc>, where his folks still live. I've heard it's quite the festive, bustling city."
;One Island &mdash; Celio
* There's a rumor…
:"Apparently, <sc>Bill</sc> can't stomach milk at all."
;Message from <sc>Bill</sc>
* From: <sc>Bill</sc>
* To: {{Player}}
:"Hey, there! <sc>Celio</sc> had nothing but praise for you. Hearing that makes me happy. When you catch some rare <sc>Pokémon</sc>, come show me, okay? Promise!"

===[[Generation IV]]===
====Sinnoh====
In {{game|Diamond and Pearl|s}}, [[Bebe]] mentions that Bill invented the original PC storage system, and that she tinkered with it to make it easier to use. Upon giving the player an {{p|Eevee}}, Bebe refers to Bill as a friend from Johto to whom the Eevee previously belonged.

====Johto and Kanto====
Bill appears in {{game|HeartGold and SoulSilver|s}} in the same capacity as he did in Generation II. He will give the player an {{p|Eevee}} if he is visited at his parents' house in Goldenrod.
=====Pokémon=====
======Gives away======
{{Pokémon/4
|game=HeartGold
|ndex=133
|pokemon=Eevee
|level=5
|gender=both
|type1=Normal
|ability=Adaptability
|ability2=Run Away
|move1=Tackle|move1type=Normal|move1cat=Physical
|move2=Tail Whip|move2type=Normal|move2cat=Status
|move3=Helping Hand|move3type=Normal|move3cat=Status}}

===Artwork===
{| style="margin:auto; text-align:center; {{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color}}|1={{Johto color}}}};"
|- 
| style="{{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; width:96px; height:96px"| [[File:Red Blue Bill.png|100px]]
| style="{{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; width:96px; height:96px"| [[File:Gold Silver Bill.png|100px]]
|- style="font-size: 80%;"
| Official artwork from<br>{{color2|000000|Generation I}}
| Official artwork from<br>{{color2|000000|Generation II}}
|}
====Sprites====
{| style="margin:auto; text-align:center; {{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color}}|1={{Johto color}}}};"
|- 
| style="{{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; width:96px; height:96px"| [[File:Bill I OD.png]]
| style="{{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; width:96px; height:96px"| [[File:MS Rhydon I.png]]
| style="{{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; width:96px; height:96px"| [[File:Bill II OD.png]]
| style="{{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; width:96px; height:96px"| [[File:Bill III OD.png]]
| style="{{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; width:96px; height:96px"| [[File:035 III OD.png]]
| style="{{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; width:96px; height:96px"| [[File:Spr FRLG Bill.png]]
| style="{{roundy|20px}} border: 2px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color dark}}|1={{Johto color dark}}}}; background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; width:96px; height:96px"| [[File:Bill OD.png]]
|- style="font-size: 80%;"
| Overworld sprite from <br>{{color2|000|Generation I}}
| Transformed<br>sprite from<br>{{color2|000|Generation I}}
| Overworld sprite from<br>{{color2|000|Generation II}}
| Overworld sprite from<br>{{color2|000|Generation III}}
| Transformed<br>sprite from<br>{{color2|000|Generation III}}
| Bill's {{color2|000|Fame Checker}} sprite from<br>{{color2|000|Generation III}}
| Overworld sprite from<br>{{color2|000|Generation IV}}
|}

==In the anime==
[[File:Bill anime.png|thumb|200px|Bill talking about the world of Pokémon]]
{{Ash}}, {{an|Misty}}, and {{an|Brock}} met Bill at his lighthouse in ''[[EP013|Mystery at the Lighthouse]]''.

Bill had previously been trapped in a {{p|Kabuto}} costume for what he claims to have been hours (in the dub only; the original didn't state how long he had been in the costume) until Ash finally comes to press the release button for him. Afterwards, Bill fulfills a request made by Professor Oak to give Ash and his friends a lesson on the basics of Pokémon, during which Bill shares the idea that there may be many more than just 150 species of Pokémon. The remainder of his appearance is spent focused on explaining to Ash and company his recent project, involving a {{p|Dragonite|mysterious Pokémon}} whose cry can be heard across the sea.
===Pokémon===
====Studied====
{{TrainerPoké
|trainer=Bill
|pkmn=Dragonite
|type1=Dragon
|type2=Flying
|img=Giant Dragonite.png
|epnum=EP013
|epname=Mystery at the Lighthouse 
|desc=As Bill was reminiscing, the same sound from his memory was heard and a large figure appeared, rising from the ocean. As it came closer, it was revealed to be the outline of a {{p|Dragonite}}. As it came closer to the lighthouse, [[Team Rocket]] was shown scaling the cliff, and upon seeing the {{pkmn2|giant}} Dragonite, they began launching a barrage of missiles at it. This angered Dragonite, and it smashed the top of the lighthouse and began to walk away. Bill called out at it to stay, but to no avail. 
In the morning, Bill seemed to be at peace with the fact that he didn't get to learn more about the Pokémon and was simply grateful he got to see it at all. With another life lesson from Bill, the heroes said goodbye and continued on their journey. 
}}

===Voice actors===
{{vatable|color={{normal color}}|bordercolor={{normal color light}}
|ja=小野坂昌也 ''Masaya Onosaka''
|en=[[Maddie Blaustein|Adam Blaustein]]
|hu=Peter Bozso
|no=Trond Teigen
|pt_br=Marcelo Campos
|pl=Wojciech Majchrzak
|es_eu=Ricardo Escobar
|es_la=Irwin Daayán 
|de=Dominik Auer
}}

==In the TCG==
This listing is of cards mentioning or featuring Bill or his services in the [[Pokémon Trading Card Game]].

{{cardlist/header|Bill|Supporter|char=yes}}
{{cardlist/entry|cardname={{TCG ID|Base Set|Bill|91}}|type=Trainer|enset=Base Set|enrarity=Common|ennum=91/102|jpset=Expansion Pack|jprarity=Common|enset2=Base Set 2|enrarity2=Common|ennum2=118/130|jpsetlink3=Intro Pack Neo|jpset3=Chikorita Half Deck<br>Totodile Half Deck|jpnum3=20<br>25|enset4=Legendary Collection|enrarity4=Common|ennum4=108/110}}
{{cardlist/entry|cardname={{TCG ID|Base Set|Bill|91}}|type=Trainer|type2=Supporter|jpset=P Promotional cards|jpnum=009/P}}
{{cardlist/entry|cardname={{TCG ID|Base Set|Bill|91}}|type=Supporter|enset=HeartGold & SoulSilver|enrarity=Uncommon|ennum=069/070|jpset=HeartGold Collection|jpnum=069/070|jpset2=Steelix Constructed Standard Deck|jpnum2=018/019|jpset3=Tyranitar Constructed Standard Deck|jpnum3=017/019|ensetlink4=HS Trainer Kit|enset4=Gyarados Half Deck|ennum4=5/30<br>18/30}}
{{cardlist/entry|cardname={{TCG ID|Neo Genesis|Bill's Teleporter|91}}|type=Trainer|enset=Neo Genesis|enrarity=Uncommon|ennum=91/111|jpset=Gold, Silver, to a New World...|jprarity=Uncommon}}
{{cardlist/entry|cardname={{TCG ID|Neo Genesis|Bill's Teleporter|91}}|type=Trainer|type2=Supporter|jpset=Pokémon Web|jprarity=Common|jpnum=015/048}}
{{cardlist/entry|cardname={{TCG ID|Neo Destiny|Mail from Bill|105}}|type=Trainer|enset=Neo Destiny|enrarity=Common|ennum=105/105|jpset=Darkness, and to Light...|jprarity=Common}}
{{cardlist/entry|cardname={{TCG ID|Expedition|Bill's Maintenance|137}}|type=Trainer|type2=Supporter|enset=Expedition Base Set|enrarity=Uncommon|ennum=137/165|jpset=Base Expansion Pack|jprarity=Uncommon|jpnum=060/128|enset2=EX FireRed & LeafGreen|enrarity2=Uncommon|ennum2=87/112|jpset2=Flight of Legends|jprarity2=Uncommon|jpnum2=080/082|jpset3=Venusaur/Charizard/Blastoise Half Deck|jpsetlink3=Venusaur/Charizard/Blastoise Random Constructed Starter Decks|jpnum3=052/052|jpset4=Gift Box Emerald|jpsetlink4=Deoxys Half Deck|jpnum4=015/019|jpset5=Grass Quick Construction Pack<br>Psychic Quick Construction Pack|jpsetlink5=Quick Construction Packs|jpnum5=010/015|jpsetlink6=Gift Box Mew • Lucario|jpset6=Crawdaunt Quarter Deck|jpnum6=009/015|enset7=EX Crystal Guardians|enrarity7=Uncommon|ennum7=71/100|jpset7=Ocean's Kyogre ex Constructed Starter Deck|jpnum7=015/016|jpset8=Earth's Groudon ex Constructed Starter Deck|jpnum8=015/016|enset9=POP Series 5|enrarity9=Uncommon|ennum9=6/17}}
{{cardlist/entry|cardname={{TCG ID|Vending|Bill's PC|S3}}|type=Pass Card|jpsetlink=Vending Machine cards|jpset=Extended Sheet 3}}
{{cardlist/footer|Supporter}}

====TCG artwork====
{| style="margin:auto; text-align:center; {{roundy|20px}} border: 2px solid #{{tcg supporter color dark}}; background: #{{tcg supporter color}};"
|- 
|style="{{roundy|20px}} border: 2px solid #{{tcg supporter color dark}}; background: #{{tcg supporter color light}}; width:80px"| [[File:Bills Maintenance.png|150px]]
|- style="font-size: 80%;"
| Artwork of Bill performing maintenance by<br>{{colorlink|Ken Sugimori|000}}
|}

==In the manga==
Bill makes appearances in several manga, including [[How I Became a Pokémon Card]], [[Pokémon Adventures]], [[Pokémon Zensho]], and [[The Electric Tale of Pikachu]].

===In The Electric Tale of Pikachu manga===
[[File:Bill EToP.png|thumb|Bill in The Electric Tale of Pikachu]]
Bill appears in the third chapter of The Electric Tale of Pikachu, ''[[ET03|Clefairy Tale]]''. He works with [[Professor Oak]] researching a colony of {{p|Clefairy}} at [[Mt. Moon]]. He was the one to discover the colony of Clefairy and has befriended many of them. Together with Professor Oak and {{OBP|Ash Ketchum|EToP|Ash}}, he assists the Clefairy with an evolution ceremony.

In the same chapter, Bill also reveals parts of his past to Ash. In the beginning, Bill only became a Pokémon Trainer because he didn't like school and wanted to take a leave of absence, but as time went on, he discovered that he deeply cared for his Pokémon. He decided to become a Pokémon researcher after witnessing his {{p|Ivysaur}} evolving into {{p|Venusaur}}.

Bill reappears with {{an|Professor Oak}} in ''[[ET19|Side Story: Ash vs. Gary]]'' at a Pokémon research center.

====Pokémon====
{{TrainerPoké
|trainer=Bill
|pkmn=Venusaur
|stage1=Ivysaur
|type1=Grass
|type2=Poison
|img=Bill Venusaur EToP.png
|epnum=ET03
|epname=Clefairy Tale
|desc=When Bill was telling Ash his story about becoming a Pokémon Trainer, a flashback showed his {{p|Ivysaur}} evolving into a {{p|Venusaur}}. This motivated Bill into becoming a Pokémon researcher.}}

===In the How I Became a Pokémon Card manga===
[[File:Bill HIBAPC.png|thumb|150px|Bill in How I Became a Pokémon Card]]
In the [[PW01|first chapter]] of [[How I Became a Pokémon Card]], a younger Bill rescues a lost {{p|Dratini}} from an angry crowd and it lives with him for a couple of days, until its father, an angry {{p|Dragonite}}, begins to go on a rampage. Dratini returns home, promising to always be friends with Bill.

====Pokémon====
=====Befriended=====
{{TrainerPoké
|trainer=Bill
|pkmn=Dratini
|gender=male
|type1=Dragon
|img=Bill Dratini HIBAPC.png
|epnum=PW01
|epname=The Day Dratini Grew Up
|desc=Bill rescued this {{p|Dratini}} when he was young. This Dratini stayed with him until a {{p|Dragonite}} who was Dratini's father goes berserk. Dratini returns home promising to be with Bill again someday.

Dratini's only known move is {{m|Wrap}}{{tt|*|mentioned on a Pokémon card only}}.}}

===In the Pokémon Adventures manga===
{{main|Bill (Adventures)}}
Bill appears as a supporting character in Pokémon Adventures.

===In the Pokémon Gold & Silver: The Golden Boys manga===
[[File:Bill Golden Boys.png|thumb|right|120px|Bill in Golden Boys]]
In [[Pokémon Gold & Silver: The Golden Boys]], Bill appears in the chapter ''[[GB11|Gold and Black VS. Team Rocket]]''. He tells {{GnB|Gold}} and [[Whitney]] all the folklore of [[Ecruteak City]], including the legends of {{p|Ho-Oh}}, the [[legendary beasts]], and the story of the [[Bell Tower]] and the [[Brass Tower]]. Later, when Bill, Gold, and the Gym Leaders are held hostage by [[Grey]] and the other Rockets, he loans his {{p|Espeon}} and {{p|Umbreon}} to Gold and {{GnB|Black}}.

====Pokémon====
This listing is for Bill's Pokémon in the Pokémon Gold & Silver: The Golden Boys manga. 

{{TrainerPoké
|width=80
|trainer=Bill
|pkmn=Espeon
|type1=Psychic
|img=Bill Espeon Golden Boys.png
|epnum=GB11
|epname=Gold and Black VS Team Rocket
|desc={{p|Espeon}} was one of the Pokémon that was immune to the radio waves caused by Team Rocket. It was given to Gold for the time being in order to stop Team Rocket.

Espeon's only known move is {{m|Quick Attack}}.}}

{{TrainerPoké
|width=80
|trainer=Bill
|pkmn=Umbreon
|type1=Dark
|img=Bill Umbreon Golden Boys.png
|epnum=GB11
|epname=Gold and Black VS Team Rocket
|desc=When Team Rocket were controlling Pokémon using the radio waves, Bill had an {{p|Umbreon}} that was immune to the effect. In order for Black to defeat Team Rocket, he was given Umbreon temporarily.

Umbreon's only known move is {{m|Quick Attack}}.}}

===In the Pokémon Pocket Monsters manga===
{{cleanup|section|width=50%}}
[[File:Bill leopard form PM.png|thumb|125px|left|Bill as a leopard]]
[[File:Bill PM.png|thumb|140px|Bill in Pokémon Pocket Monsters]]
Bill and his wife were transformed into a leopard and {{p|Mew}} respectively from an unsuccessful experiment, which his wife noted, when they combined themselves with a cat when they wanted to combine a human and an animal together. After doing so, Bill's wife went out to search for a Moon Stone in order to get changed back to humans. She managed to find the Moon Stone that {{OBP|Red|Pocket Monsters}} and {{OBP|Green|Pocket Monsters}} were searching for. They go after Mew and arrive in an abandoned water mill. Red and Green's entrance caused Bill to appear and introduces himself to them. He then explains that he was the one who created the unknown Pokémon in the house and is experimenting on creating the most powerful Pokémon. However, the Pokémon Bill created are just plush dolls instead of real Pokémon. Seeing {{TP|Red|Clefairy}}, Bill decides to use him for one of his experiments but his wife stops him before he was able to do so. His wife explained the story about their transformations to the group and why she took the Moon Stone from them. After the story, Green decides to capture her, thinking that she was a real Mew but Bill prevents him from doing so. When Clefairy battled [[Green's Charizard]], Bill went to one of the machines to shrink Charizard but it ended up shrinking both Clefairy and Charizard since the former did not leave the machine on time. After Green gave up on catching Bill's wife in the form of Mew, the group watches Bill and his wife use the Moon Stone and the machine that transformed them in the first place in order to change back into humans. It worked as the Moon Stone the Mew took was actually the antidote to change back into their human selves. As soon as that happened, both Red and Green ran away after noticing Bill's hideous appearance in human form.
[[File:Bill wife PM.png|thumb|135px|Bill's wife]]
[[File:Bill 2 PM.png|thumb|130px|left|Bill's Johto appearance]]
Bill made a reappearance in ''[[PM025|Bring Down the Strongest Pokémon!!]]'' with his wife. {{OBP|Giovanni|Pocket Monsters}} kidnaps him and his wife in order to finish creating {{TP|Blue|Mewtwo}} since Giovanni only created the first half. Giovanni tied up his wife, as well as Green and his Charmander, while Bill worked on creating the Mewtwo. Bill became worried about his wife but Giovanni told him to get back to work. Clefairy tries to stop the creation of Mewtwo from getting finished but Giovanni's {{p|Meowth}} prevents him from getting closer. With Mewtwo completed, Bill's wife is untied, and she and Bill go up to Mew to see if it was okay. When Clefairy battled Mewtwo, he threw it in the DNA switching machine and Clefairy went in the other one. Clefairy told Bill to give Mewtwo his DNA and Bill activates the DNA switching machine which transformed Clefairy into Mewtwo. Clefairy goes in the machine again but Bill could not do it since it did not have any power. {{OBP|Red's Pikachu|Pocket Monsters}} used his electricity to charge it up and Clefairy's DNA went to Giovanni's other Pokémon.

Bill made his third appearance in ''[[PM088|Find the Legendary Pokémon!!]]'' His appearance is closer to his game artwork in this chapter. A Kimono Girl takes Red and his Pokémon to him after they were playing around in the [[Burned Tower|Brass Tower]]. Bill shows them his [[Time Capsule]] machine and demonstrates it on a guy about to get hit by a car, Tyrogue runs to the car and gets hit instead. Bill then ponders about his past which made Clefairy interested and wants the group to try it out. They go in the time machine and he sends them back in time.

====Pokémon====
=====Temporary=====
{{TrainerPoké
|trainer=Bill
|pkmn=Mew
|gender=female
|type1=Psychic
|img=Bill Mew PM.png
|epnum=PM004
|epname=Obtain the Moon Stone!
|desc={{p|Mew}} was the wife of Bill. She was searching for a Moon Stone in order to change herself and Bill back to humans.}}

===In the Pokémon Zensho manga===
Bill appears in ''[[PZ04|Vermilion City]]'' where he transformed into a {{p|Nidoran♂}}. {{Zensho|Satoshi}} comes by and mistakes him for an actual Nidoran. He ends up catching him and Bill tells Satoshi that the Nidoran is him. He then has Satoshi place him in a machine that will separate his human self from his Pokémon self.

====Pokémon====
{{TrainerPoké
|trainer=Bill
|pkmn=Nidoran♂
|type1=Poison
|img=Satoshi Nidoran m Zensho.png
|epnum=PZ04
|epname=Vermilion City
|desc=Prior to Satoshi's arrival, Bill ends up being merged into the {{p|Nidoran♂|male Nidoran}}'s body in a Pokémon transporter. As soon as Satoshi shows up, he ends up catching Nidoran♂ but releases it after finding out that it was a human. Nidoran♂ got separates from Bill after telling Satoshi how to use the transporter to separate Bill from the Nidoran's body.}}
<br>

==Trivia==
* Bill is one of two male characters in charge of a PC storage system, running the systems for the [[Kanto]] and [[Johto]] regions. [[Cassius]] is the second, running the system for the [[Kalos]] region. The characters in charge of the storage systems in the [[Hoenn]], [[Sinnoh]] and [[Unova]] regions are all female.
* Bill being mixed with a Pokémon during a teleportation experiment seems to be a direct reference to the movie ''{{wp|The Fly}}'', where a scientist experimenting with teleportation pods ends up combined with a fly.
* In [[Pokémon FireRed and LeafGreen Versions|FireRed and LeafGreen]], if a player declines to go to the [[Sevii Islands]] after defeating [[Blaine]], Bill will wait in [[Cinnabar Island]]'s Pokémon Center. During this period, he is both back at his home on {{rt|25|Kanto}} and on Cinnabar Island at the same time.
* In the anime, Bill has green hair, and appears to be wearing formal clothing. In the games, his appearance differs greatly.
* Many rumors sprouted up during the time of Generation I where if the player could travel to the gap which appeared at the back of Bill's House, they would encounter Mew. This proved to be false and to stop further rumors, the gap was removed in the Generation III remakes.
* In Generation II and {{game|HeartGold and SoulSilver|s}}, a fan of Bill's named Brent will reveal trivia about Bill via the [[Pokégear]]. The information shared include the fact that Bill's younger sister can't wink, Bill's first Pokémon caught was {{p|Abra}}, his mother used to be a [[Kimono Girl]], Bill is lactose intolerant (also claimed by Celio in {{game|FireRed and LeafGreen|s}}), he isn't very good at Pokémon battles, and that Bill is attracted to the Goldenrod Flower Shop owner's daughter.
* In the anime, Bill is portrayed as having an {{wp|Regional accents of English|English accent}}, while in the Pokémon Adventures manga, he is portrayed as having a southern American accent.
* The Pokémon Bill is mixed with is different in each canon: in Generation I he is mixed with an unknown Pokémon, in Generation III he is mixed with a {{p|Clefairy}}, in the Pokémon Adventures manga he is mixed with a {{p|Rattata}}, in the Pokémon Zensho manga he is mixed with a {{p|Nidoran♂}}, and in the anime he is trapped in a {{p|Kabuto}} costume.

==Names==
{| class="roundy" style="background: #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color light}}|1={{Johto color light}}}}; border: 3px solid #{{#switch: {{#expr: {{#time: U}} mod 2}}|0={{Kanto color}}|1={{Johto color}}}}"
|- 
!Language
!Name
!Origin
|- style="background:#FFF;"
|Japanese
|ソネザキマサキ<br>''Masaki Sonezaki''
|From 正木 ''masaki'' ({{wp|Euonymus japonicus|Japanese spindle}}) and possibly みさき ''misaki'' (cape), referring to where he lives.
|- style="background:#FFF;"
|English, German,<br>Italian, Spanish
|Bill
|Possibly from {{wp|Bill Gates}}, former head of {{wp|Microsoft}} and developer of the {{wp|Microsoft Windows}} operating system for PCs.
|- style="background:#FFF;"
|French
|Léo
|Possibly from {{wp|LEO (website)|Link Everything Online}}.
|- style="background:#FFF;"
|Korean
|이수재 ''Lee Su-Jae''
|From 수재 ''Su-Jae (秀才)'', meaning a very talented person, referring to his Pokémon research expertise in many fields.
|- style="background:#FFF;"
|Chinese ({{tt|Mandarin|Taiwan and mainland China}})
|曾根崎正輝 / 曾根崎正辉<br>''Cénggēnqí Zhènghuī''
|From the Japanese 曾根崎 ''Sonezaki'' and 正輝 ''Masaki''. 輝 (radiance) is also a possible reference to his lighthouse on the cape. 
|}
{{-}}
{{PCDevelopers|kanto}}
{{NPC|Kanto|kanto=yes}}
{{-}}
{{Electric Tale of Pikachu characters}}
{{-}}
{{Pocket Monsters Characters}}
{{Project CharacterDex notice}}

[[Category:Anime characters]]
[[Category:Manga characters]]
[[Category:Electric Tale of Pikachu characters]]
[[Category:Pokémon Pocket Monsters characters]]
[[Category:Pokémon Zensho characters]]
[[Category:Red, Blue and Yellow characters]]
[[Category:Gold, Silver and Crystal characters]]
[[Category:FireRed and LeafGreen characters]]
[[Category:HeartGold and SoulSilver characters]]
[[Category:Characters named after real people]]

[[de:Bill]]
[[fr:Léo]]
[[it:Bill]]
[[ja:マサキ]]
[[pl:Bill]]
[[zh:正辉]]