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Lucas コウキ Kōki
Art from D/P
Gender	Male
Hometown	Twinleaf Town (as player), Sandgem Town (as partner)
Region	Sinnoh
Relatives	Johanna, unnamed father (as player), unnamed sister, grandfather, father (as partner)
Class	Trainer, Rival
Generation	IV
Games	Diamond, Pearl

Lucas (Japanese: コウキ Kōki) is the male player character of Pokémon Diamond and Pearl. The female counterpart is Dawn. If the player chooses Dawn, he will become Rowan's assistant for the game. Lucas lives in Sandgem Town with his little sister, grandfather, and father - who works as an assistant of Professor Rowan. He is already the Professor's assistant at the beginning of the game. He also demonstrates to the player how to capture Pokémon by capturing a wild Bidoof.

The character Diamond from the Pokémon Special manga is based off of the design of Lucas.

His English name is similar to "lux", Latin word for light, while his Japanese name is a reference to the Japanese word for "brightness" (光輝 kōki), much like Hikari means light (光). It is also similar to 金剛石 kongōseki, a Japanese word for diamond.

Contents 1 Pokémon 1.1 First battle (capture tutorial) 1.2 Second battle (as partner) 1.3 Third battle (as partner) 2 Optional names for Lucas (as player character) 3 Trivia

Pokémon

This listing is for Lucas's Pokémon in the video games in which he has appeared.

First battle (capture tutorial)

If player's starter was
Chimchar	Piplup	Turtwig
N/A Pokémon Trainer Lucas Diamond and Pearl - Route 202 Pokémon Turtwig ♂/♀ Level 5 Ability Overgrow Held item Unknown Moves Tackle Withdraw -- --	N/A Pokémon Trainer Lucas Diamond and Pearl - Route 202 Pokémon Chimchar ♂/♀ Level 5 Ability Blaze Held item Unknown Moves Scratch Leer -- --	N/A Pokémon Trainer Lucas Diamond and Pearl - Route 202 Pokémon Piplup ♂/♀ Level 5 Ability Torrent Held item Unknown Moves Pound Growl -- --

Second battle (as partner)

If player's starter was
Chimchar	Piplup	Turtwig
N/A Pokémon Trainer Lucas Diamond and Pearl - Jubilife City Pokémon Turtwig ♂/♀ Level 13 Ability Overgrow Held item Unknown Moves Absorb Tackle -- --	N/A Pokémon Trainer Lucas Diamond and Pearl - Jubilife City Pokémon Chimchar ♂/♀ Level 13 Ability Blaze Held item Unknown Moves Ember Scratch -- --	N/A Pokémon Trainer Lucas Diamond and Pearl - Jubilife City Pokémon Piplup ♂/♀ Level 13 Ability Torrent Held item Unknown Moves Bubble Pound -- --

Third battle (as partner)

If player's starter was
Turtwig	Chimchar	Piplup
N/A Pokémon Trainer Lucas Diamond and Pearl - Veilstone City Pokémon Clefairy ? Kadabra ? Prinplup ♂/♀ Level 25 25 28 Ability Cute Charm Unknown Torrent Held item Unknown Unknown Unknown Moves Gravity Psycho Cut BubbleBeam Metronome Psybeam Peck Wake-Up Slap Reflect -- Sing Light Screen --	N/A Pokémon Trainer Lucas Diamond and Pearl - Veilstone City Pokémon Clefairy ? Kadabra ? Grotle ♂/♀ Level 25 25 28 Ability Cute Charm Unknown Overgrow Held item Unknown Unknown Unknown Moves Gravity Psycho Cut -- Metronome Psybeam -- Wake-Up Slap Reflect -- Sing Light Screen --	N/A Pokémon Trainer Lucas Diamond and Pearl - Veilstone City Pokémon Clefairy ? Kadabra ? Monferno ♂/♀ Level 25 25 28 Ability Cute Charm Unknown Blaze Held item Unknown Unknown Unknown Moves Gravity Psycho Cut -- Metronome Psybeam -- Wake-Up Slap Reflect -- Sing Light Screen --

Optional names for Lucas (as player character)

Language	English	Japanese	German	French	Italian	Spanish	Korean
Diamond/Pearl	Diamond Pearl Ash Nic Jimmy Duncan Todd Ross Steven Darrell Reed Chris Brad Dwight Randy Andy Joey Eric Mark	ダイヤ Dia パール Pearl カモン Kamon ケイ Kay ケン Ken サトシ Satoshi シゲキ Shigeki ジャック Jack ジャン Jean ジョン John タカオ Takao タカシ Takashi タケヒロ Takehiro テツオ Tetsuo トオル Tooru ヒトシ Hitoshi ヒロアキ Hiroaki ヒロキ Hiroki マサオ Masao	Diamant Perl Helge Udo Thomas Boris Hans Silvio Daniel Gerd Ralf Jack John Bert Uli Tobi Jon Jan Karsten	Diamant Perlo Gurvan Polo Dilan Gabriel Zack Greg Loris Seb Thomas Tom Kamel Ralph Marc Max Daniel Franck Damien	Diaman Perl Attilio Marco Manuele Gabry Silvano Mattia Ash Paolo Lucio Ralph Dino Karl Kamon Rossano Dimitri Oscar Daniel	Diamant Perla Quimi Ner Ral Sergi Ash Candel Rafa Juno Juanma Marino Max Morel Eric Llamin Javi Rudy Toilo	다이아몬드 Diamond 펄 Pearl 강산 Gangsan 다인 Dain 상우 Sang'u 상현 Sanghyeon 수호 Suho 윤호 Yunho 인철 Incheol 재범 Jaebeom 쟝 Jyang 지겸 Jigyeom 지우 Jiu 지훈 Jihun 찬호 Chanho 청운 Cheong'un 캔 Ken 케이 Kay 호진 Hojin

Trivia

• Like Pearl having one of his default Japanese names being Shigeru, one of Lucas's default names in the English translation is Ash.
• Lucas is 4'7" (145 cm) tall and weighs 83.8 lbs (38 kg).
• Lucas and Dawn are asked if they are a couple by Mars during the Lake Acuity battle: "So what is it? Are you some lovey-dovey couple to the rescue?"
• In the newly-announced Pokémon Platinum Version, Lucas wears a long-sleeved, blue jacket. It is unknown if there will be any more changes in his clothing.