Hmm, well in this case it's an animated sheep with the exact same name (granted it's quite an obvious name to give a sheep) - but it looks virtually identical in every respect... except that he's standing on 2 legs. It's true that any sheep model is going to look kind of like that. But even so that's still a very close resemblance.
Probably get away with it though. A name change would help.
Probably get away with it though. A name change would help.