Type expert

A type specialist is a Pokémon Trainer who specializes in just one elemental type. These trainers are most commonly Gym Leaders or members of the Elite Four. There are also some trainer classes that specialize in one type, such as the Bug Catchers who specialize solely in training and battling with Bug-type Pokémon

Some notable trainers would include Brock, the Pewter City Gym Leader who specializes in only Rock-type Pokémon, and Misty, the Cerulean City Gym Leader who specializes in only Water-type Pokémon.

Bug-type specialists

• Bugsy of the Azalea Town Gym
• Aaron of the Sinnoh Elite Four
• Bug Catcher
• Bug Maniac
• Team Galactic Grunt

Dark-type specialists

• Karen of the Kanto Elite Four
• Sidney of the Hoenn Elite Four

Dragon-type specialists

• Lance of the Kanto Elite Four
• Clair of the Blackthorn City Gym
• Drake of the Hoenn Elite Four
• Dragon Tamer

Electric-type specialists

• Lt. Surge of the Vermillion City Gym
• Wattson of the Mauville City Gym
• Volkner of the Sunyshore City Gym
• Engineer
• Rocker
• Guitarist

Fighting-type specialists

• Bruno of the Kanto Elite Four
• Chuck of the Cianwood City Gym
• Brawly of the Dewford Town Gym
• Greta of the Battle Arena in the Battle Frontier(*)
• Maylene of the Veilstone City Gym
• Cue Ball
• Black Belt
• Sailor
• Crush Girl
• Crush Kin
• Expert

Fire-type specialists

• Blaine of the Cinnabar Island Gym
• Flannery of the Lavaridge Town Gym
• Flint of the Sinnoh Elite Four
• Magma Admin
• Magma Leader
• Burglar
• Firebreather
• Kindler

Flying-type specialists

• Falkner of the Violet City Gym
• Winona of the Fortree City Gym
• Bird Keeper

Ghost-type specialists

• Agatha of the Kanto Elite Four
• Morty of the Ecruteak City Gym
• Phoebe of the Hoenn Elite Four
• Fantina of the Hearthome City Gym
• Channeler
• Medium
• Hex Maniac

Ground-type specialists

• Giovanni of the Viridian City Gym
• Bertha of the Sinnoh Elite Four

Grass-type

• Erika of the Celadon City Gym
• Gardenia of the Eterna City Gym
• Aroma Lady

Ice-type specialists

• Lorelei of the Kanto Elite Four
• Pryce of the Mahogany City Gym
• Glacia of the Hoenn Elite Four
• Candice of the Snowpoint City Gym
• Skier
• Boarder

Normal-type specialists

• Whitney of the Goldenrod City Gym
• Norman of the Petalburg City Gym

Poison-type specialists

• Koga of the Fuchsia City Gym and Kanto Elite Four
• Janine of the Fuchsia City Gym
• Team Rocket Grunt
• Biker

Psychic-type

• Sabrina of the Saffron City Gym
• Will of the Kanto Elite Four
• Tate and Liza of the Mossdeep City Gym
• Anabel of the Battle Tower in the Battle Frontier*
• Lucian of the Sinnoh Elite Four
• Psychic
• Hex Maniac

Rock-type specialists

• Brock of the Pewter City Gym
• Roxanne of the Rustboro City Gym
• Roark of the Oreburgh City Gym
• Hiker

Steel-type specialists

• Jasmine of the Olivine City Gym
• Steven of the Hoenn Elite Four
• Byron of the Canalave City Gym

Water-type specialists

• Misty of the Cerulean City Gym
• Wallace of the Sootopolis City Gym and Hoenn Elite Four
• Juan of the Sootopolis City Gym
• Crasher Wake of the Pastoria City Gym
• Aqua Admin
• Aqua Leader
• Team Aqua Grunt
• Swimmer
• Fisherman
• Sailor
• Tuber
• Sis and Bro
• Kindler