Adventure Time

Because I'm an adult who watches cartoons. Most of these typings are wild guesses.

Fin - SEE

Jake - ILE?

Princess Bubblegum - ESI? Definitely a rational type.

Ice King - EP of some kind, possibly IEE

Marceline - Irrational type. Other than that, idk. She's my fave.

Lady Rainicorn - SEI? It would make sense for her to be Jakes dual.

Lumpy Space Princess - EIE lol

Flame Princess - LSI?? She kind of reminds me of Myst lol