When he is not being racist (or at the very least, racially insensitive), he is a hyperactive spazz.
Cartoon Creature: He resembles some weird purple gorilla thing.This usually comes in the form of calling out the stick that controls his arm, as well as mocking Jeff with his own puppet.
Breaking the Fourth Wall: Peanut knows that he's a puppet and takes full advantage of this to annoy Jeff whenever he can.He's also the only puppet to realize he's actually a puppet. A hyperactive weird thing, he's got a Motor Mouth few can match, and almost always finds a way to annoy Jeff. That's good, that's good, that's goooooooood!Another one of Jeff's oldest puppets. Disappeared Dad: In Relative Disaster, Walter is heavily implied to be Jeff's biological parent, something neither of them is thrilled about.Dirty Old Man: Calling Jeff's second wife Audrey a nice chair ( It Makes Sense in Context) probably counts.Comes with being an old man, most likely. Deadpan Snarker: Walter is, arguably, a master of being a Deadpan Snarker.Cool Old Guy: As unarguably cantankerous as he is, he still knows South Park and its They Killed Kenny Again gag.Clint Squint: His eyes are blue, but you can't tell because they don't open any wider.Despite this, Walter admits that he still loves her. One of the most consistent things when it comes to Walter is how much he complains about his wife. All Men Are Perverts: Except when it comes to his wife.A crotchety old-timer who constantly complains about his love life while offering Jeff sound, but at times questionable marriage advice. Shut the hell up!One of Jeff's oldest puppets, and easily the most popular because of his character.