I don't mind Doug Benson showing up on podcasts, but Kevin Pollak needs to disappear from the face of the earth. The hats, the tired Christopher Walken impression - all of it needs to go.
(Full Disclosure: I don't listen to Kevin Pollak's Chat Show. It could be the funniest, most interesting show in the world. I wouldn't know. All I know is, whenever he shows up anywhere else, he makes himself the center of attention and is horribly unfunny. Just my opinion.)