I Am Weasel Opening. An internationally famous genius, I.M. Baboon. I Am Weasel was originally a segment of Cow and Chicken, often airing as the third of three segments in an episode, after two Cow and Chicken segments. The adventures of a highly intelligent, talented and rather generous weasel and a stupid baboon who has no talent at most things. 72 images of the I Am Weasel cast of characters. Created by David Feiss. With Charlie Adler, Michael Dorn, Tom Kenny, Dee Bradley Baker. I. R. Baboon is the exact opposite of Weasel, whom he is always trying to outperform.He is a Hamadryas baboon, and a main character of Cow and Chicken's spin-off I Am Weasel.He was the main antagonist of Season 1, and the secondly antagonist/protagonist of the following seasons, because Red Guy was introduced, and became the main antagonist. shorts. Baboon undertakes, it seems that the worldly I.M. Weasel is envied by his less-than-clever counterpart, I.R. I Am Weasel is an American animated television series created by David Feiss, produced by Hanna-Barbera with Cartoon Network Studios, and broadcast on Cartoon Network.. I Am Weasel (I. M. Weasel) Episode Guide -Hanna-Barbera- 1999. Photos of the I Am Weasel (Show) voice actors. I Am Weasel and Ed, Edd n Eddy were the first two Cartoon Cartoons series not to be introduced as What a Cartoon! No matter what outlandish adventure I.R.