Oh hell where do I start..

cowboy
indian
cop
robber
alien
astronaut
fireman
gi joe
super mario
a dinosaur
any number of fantasy characters (wizards, warriors, thieves, demons, various monsters..etc.)
jean claude van damme
a dog
a spy
a girl (tee hee)
the principal
superman
transformers, he man characters, any ninja turtle and the shredder twice.