damn you Peter…I came to add that!
193 episodes, same Moose.
Although his sondid double for him.
Jimmy the Crow/Raven(he was billed as both) has 26 IMDB credits (best known as Uncle Billy’s pet in It’s a Wonderful Life).
According to Wikipedia, he had over 1000 roles, which doesn’t seem likely.
Spivak pronouns, which I consider to be the most elegant set of gender-neutral personal pronouns, though the consensus seems to disagree (I seem to see “ze” and “hir” more often, for some reason).
I don’t know how credits are counted, but My Three Sons had 380 episodes and Tramp was in just about all of them. I know that towards the end of the show’s run a “new Tramp” appeared which as far as I know, was the only other Tramp and I think it was only the last season.
Maybe the 30 Rock llama for SNL?
I checked the imdb pages for half a dozen of the Weissmuller Tarzan films, and most of them listed no chimpanzee at all. (Including Tarzan Triumphs, which most certainly did have a chimp: https://www.youtube.com/watch?v=ldyDb-fWSps )
There are apparently two Bart the Bears. The original had 20 acting credits. He passed away in 2000. His cousin Little Bart has 12 acting credits, most recently in 2016.