Three heads is better than One Picture this is a pitch for a kid's tv cartoon If i where to make one:

This is cerberus, vicious gaurdian of the greek mythological underworld. But he has a problem-every one of his heads has a completely different personality. Hades, god of the underworld, sends him on various quests to other gods, but he usually miserably fails. So every "episode" would be Hades sending him on some kind of long, almost impossible quest (to get rid of him) and him getting twisted up in his own heads and problems, and meeting new gods and such along the way.
Its kind of like catdog, but 3 dogs instead of a dog and cat. and he can kill people.
DnD- Cerberus
Three heads is better than One
Mythical creatures
'Not yet finished' Cerberus