Notes on Trainer Classes of important characters

Gym Leaders:

Gen I:

1. Brock: N/A, though his Gym uses Campers and Hikers in HGSS.
2. Misty: Female Swimmer obviously, though her Gym uses Picnickers in FRLG and Sailors in HGSS.
3. Lt. Surge: N/A (Army Officer), and his Gym uses a variety of trainers.
4. Erika: N/A (Furisode Girl), and her Gym uses variety of trainers, particularly Beauties.
5. Koga/Janine: N/A (Ninja), Koga's Gym uses Tamers and Jugglers, whereas Janine's uses Campers and Lasses.
6. Sabrina: N/A(Tamer in Gen I), Female Psychic(Gen I afterwards), her Gym uses Psychics and Mediums.
7. Blaine: Scientist obviously, though his Gym uses (After-burn) Burglars and Super Nerds in initial incarnations, as Scientist class was originally called Scientist Gone Astray.
8. Giovanni: N/A(Mob Boss), though his Gym uses Tamers, Black Belts and Cool Trainers. Blue: Ace Trainer, as his HGSS Gym is full of them.

Gen II:

1. Falkner: Bird Keeper, obviously, though he is based off a more traditional version.
2. Bugsy. Bug Catcher, obviously, though he himself is more of a Bug Expert.
3. Whitney: Somewhere between a Beauty and Lass, which compose her Gym.
4. Morty: N/A (Ruin Researcher), though his Gym uses Mediums.
5. Chuck: Black Belt, though he himself is more of a Heavy Lifter.
6. Jasmine: N/A( Presumably Lady, but a lower class one).
7. Pryce: Though his Gym consists of Boarders, he is based off Gentleman, hence his cane, though his HGSS design is more of a predecessor for Veterans.
8. Clair: Though her Gym consists of Ace Trainers, she is a predecessor for Dragon Tamers.

Gen III:

1. Roxanne: Former Honor Student went Tutor, aka Teacher.
2. Brawly: N/A(Surfer), though his Gym consist Black Belts and Battle Girls as well as some Sailors in Emerald.
3. Wattson: Scientist went Gentleman. His Gym uses a variety of trainers, even Battle Girls and Bug Maniacs.
4. Flannery: N/A(Hot Springs Manager), though her Gym uses Kindlers and Cooltrainers.
5. Norman: Former Ace Trainer turned Gym Leader. Though his Gym and house in-game have a lot of Zen Buddhism symbolism, that's more to do with the fact he comes from Johto.
6. Winona: Though her design has inspired Pilots and Sky Trainers, she is canonically a Bird Keeper.
7. Tate and Liza: They are Psychics, they are Twins, they are Psychic Twins.
8. Wallace and Juan: N/A(Coordinator).

Gen IV:

1. Roark: He is a Miner, though his design mostly matches Workers in Oreburgh Mine.
2. Gardenia: N/A(Explorer), though her Gym predominantly has Aroma Ladies.
3. Maylene: Though her Gym has Black Belts, she herself a karate Battle Girl.
4. Crasher Wake: Though his Gym uses a variety of trainers, he is a Pro Wrestler, or at least imitating as one.
5. Fantina: Technically Dancer, though there hasn't been a Dancer class that matches her ballroom style.
6. Byron: Same as Roark.
7. Candice: Same as Whitney, though she is also a fashionista and a Teacher in the animé.
8. Volkner: Though he is based off J-Rock scene design-wise, he is implied to be an Engineer.

Gen V:

1. Straiton Brothers: Waiters who also serve as the Cook.
2. Lenora: Though she is a Librarian and a Paleontologist by profession, her class is de facto Teacher.
3. Burgh: N/A(Fashion Designer), though his Gym uses Harlequins.
4. Elesa: Beauty, B2W2 Fashion Model version.
5. Clay: N/A(Businessman)
6. Skyla: Pilot
7. Brycen: Black Belt, but more importantly, Actor.
8. Drayden/Iris: N/A(Mayor and Wild Girl).
9. Cheren: Teacher.
10. Roxie: Guitarist
11. Marlon: N/A(Net Fisher), predecessor to Scuba Diver.

Gen VI:

1. Viola: N/A(Photographer)
2. Grant: N/A(Mountain Sports), though he can be considered a Cyclist.
3. Korrina: Roller Skater
4. Ramos: Though his Gym has none of them, he is a Gardener.
5. Clemont: Visually based off Schoolboy, though he is an Engineer.
6. Valerie: Furisode Girl
7. Olympia: Psychic, Specifically a Precog.
8. Wulfric: N/A(Navy Veteran)

Trial Captains:

Gen VII:

1. Ilima: Schoolboy?
2. Lana: Fisherman
3. Kiawe: Dancer
4. Mallow: Wanna-be Cook
5. Sophocles: Super Nerd, but younger and fatter.
6. Acerola: Hex Maniac, though she is obviously younger.
7. Mina: Artist/Painter

Elite Four:

Gen I:

1. Lorelei: N/A(Beauty?)
2. Bruno: Technically a Black Belt, though he is more of a Bodybuilder.
3. Agatha: Technically a Madame.
4. Lance: Predecessor of Dragon Tamer

Gen II:

1. Will: N/A(Magician)
2. Koga: Same
3. Bruno: Same
4. Karen: Beauty, though her type is unrelated.

Gen III:

1. Sidney: N/A, predecessor to Gen VII Veteran.
2. Phoebe: N/A, predecessor to Gen VII Dancer.
3. Glacia: N/A(Traveller)
4. Drake: N/A(Ship Captain)

Gen IV:

1. Aaron: Technically a Bug Catcher.
2. Agatha: Technically a Socialite.
3. Flint: N/A
4. Lucian: N/A

Gen V:

1. Shauntal: N/A(Writer)
2. Marshal: Technically a Black Belt, but more of a brawler.
3. Grimsley: Gambler(localized as Gamer and later PI).
4. Caitlin: Psychic+Lady.

Gen VI:

1. Malva: N/A(Reporter, Beauty? She considers herself a Thief.)
2. Siebold: Chef
3. Wikstorm: N/A(Knight)
4. Drasna: N/A(Dragon Elder?)

Gen VII:

1. Hala: Technically a Gentleman, but N/A, being Kahuna is pretty much his class.
2. Olivia: N/A(Jewel Merchant? Beauty?
3. Acerola: N/A
4. Kahili: Golfer

Champions:

1. Red/Blue: Pokémon Trainers.
2. Lance: See above.
3. Steven: Rich Boy+Ruin Maniac, Wallace: See above.
4. Cynthia: Ruin Maniac+Beauty
5. Alder: N/A, 
6. Iris: N/A
7. Diantha: Actress

Kahunas:

1. Hala: See above
2. Olivia: See above
3. Nanu: N/A(Detective)
4. Hapu: N/A(Jockey?)

Villain Team Leaders:

1. Giovanni: Gym Leader(Businessman)
2. Maxie: N/A in R/S/E, Scientist in OR/AS
3. Archie: N/A(Pirate? Naval Captain?)
4. Cyrus: N/A(Formerly Super Nerd)
5. Colress: Scientist
6. Lysandre: N/A
7. Lusamine: Beauty+Scientist
8. Guzma/Plumeria: Street Thug/Delinquent

Villain Teams:

1. Team Rocket: Tamer(OG), N/A.
2. Team Magma: N/A(Hoodies in R/S/E, Militaristic in OR/AS)
3. Team Aqua: N/A(Pirates)
4. Team Galactic: N/A(Astronauts, theorized to be originally have been Super Nerds)
5. Team Plasma:: N/A(Knights in B/W, Pirates in B2/W2)
6. Team Flare: Clerks(With Fashionista characteristic)
7. Team Skull: Canonically Punk Guy/Girl
8. Aether Foundation: More or less Pokémon Rangers(Main Series)

Frontier Brains:

Gen III:

1. Anabel: Female Psychic
2. Spenser: Sage
3. Brandon: Ruin Maniac
4. Tucker: N/A(Showman, as in male showgirl)
5. Greta: Battle Girl
6. Lucy: Beauty
7. Noland: N/A(Factory Head, hyuck hyuck)

Gen IV:

1. Palmer: N/A(Trainer)
2. Thorton: Rich Boy+Super Nerd
3. Dahlia: Dancer, though see Fantina.
4. Darach and Caitlin :Butler and Lady
5. Argenta: Socialite

Gen V:

1. Subway Masters: Train operator

Gen VI:

1. Chantelines: Lady