Greatest cameos?

[Tauric]

Patrick Duffy and Victoria Principal in "Family Guy"

 

[Queen_Dopplepopolis]

Diedrich Bader as Rex in Napoleon Dynamite.

 

[mojo1701]

I dunno if this is actually a cameo, since I don't exactly now the term

But anyways

Pulp fiction

Quentin tarantino, I really think that guy's hilarious

Also, a lot of episodes of the simpsons have great cameo's

I don't think Tarantino's role in "Pulp Fiction" exactly qualifies, as it's a long-enough role.

...oh, and http://en.wikipedia.org/wiki/Cameo_appearance.