Mein Schulfreund ist ein Affe
My Gym Partner's a Monkey (original)
Starring Tom Kenny, Phil LaMarr, Grey DeLisle, Nika Futterman, Maurice LaMarche, Cree Summer, Brian Doyle-Murray, Rick Gomez
It's a animation and kids show, and has a rating of 5.8 out of 10 from Imdb which is fairly okay for this kind of show.
Watch it here
Not found streaming from Germany.