Question: What is the name of the baboon in a show on which Rumen Petkov recently worked as writer, storyboard artist, animation director and director on some episodes?
Sentence (from "I Am Weasel"): The series centers on I.M. Weasel, a smart, beloved and highly successful weasel, and I.R. Baboon, an unsuccessful and unintelligent baboon who is jealous of Weasel's success and constantly tries to upstage him.
Relevant evidence: Yes