Obscure/unpopular/irrelevant/underrated character(s)

With the recent news, I wanted to ask you what obscure, unpopular, irrelevant or underrated character(s) you want to see being added into the game. You don't have to be shy with your picks! It can also be one-shot characters. Here are some of my picks: Rex ("Generator Rex"); Scrappy Doo ("Scooby Doo"); Sibella ("Scooby Doo and The Ghoul School"); Uncle Grandpa; Clarence; King Ramses, Queen of The Black Puddle ("Courage the Cowardly Dog"); The Bear Brothers (as a team) ("We Bare Bears"); Sheldon Cooper ("The Big Bang Theory"); Gumball Guardian ("Adventure Time"); Bunny, Bliss ("The Powerpuff Girls"), Jonathan Joestar ("JoJo's Bizarre Adventure"), Audrey II ("Little Shop of Horrors"), Alfred Pennyworth, Condiment King ("DC"), Lion-oh ("Thundercats"), Speed Buggy