The latest performer to embrace this idea is James Van Der Beek, who plays "himself" on the new sitcom "Don't Trust the B---- in Apartment 23," the smarmy friend of Krysten Ritter's Chloe, still using his "Dawson's Creek" fame to get girls and lower-tier acting gigs (in real life, Van Der Beek's married with two kids and, you know, is a regular on a new network comedy). Here's a look at some other shows that have featured actors playing nastier, more inconsiderate, less successful or more embarrassing versions of themselves -- and not just in self-mocking cameos, but as cast members.
Larry David in "Curb Your Enthusiasm"
The "Seinfeld" co-creator took that show's abrasive themes to even greater highs and lows when staring in his own series on HBO in which he plays "Larry David," a semi-retired TV guy who doesn't know the meaning of letting something go. Much, if not all, of the action in "Curb Your Enthusiasm" depends on David's unwillingness or inability to change his behavior for the benefit of other people. It's both excruciating and fun to watch, but if someone were to act like that in real life, it could only be excruciating. As David told Rolling Stone, "As crazy as this person is, I could step into those shoes right now, but I would be arrested or I'd be hit or whatever."
Jennifer Grey in "It's Like, You Know..."
Created by Peter Mehlman, another "Seinfeld" alum, this short-lived sitcom starred Chris Eigeman as a devoted New Yorker who heads to L.A. to stay with his well-to-do friend and write a book trashing the town. That friend's neighbor? "Dirty Dancing" lead Jennifer Grey, whose career never recovered from her getting a nose job that changed her appearance enough to leave her unrecognizable. That fateful rhinoplasty became part of her character's storyline on the show, though the joke lost a lot of its lustre when it became evident the series wasn't going anywhere -- self-deprecation's easier to laugh at when there's clear evidence countering it.