Also suspect are Kal Penn:
Penn asked to leave the series, so he'd be freed up to work for... wait for it... the President of The United States.
and Nick Colvin and of course his main squeeze, Reggie Love.
http://blog.zap2it.com/korbitv/2009/04/kal-penn-leaves-house-for-obama-no-seriously.html
And after being so gung ho, Kalpen has already quit. He’s going back to make another DTV Harold and Kumar film.