Tricia Helfer has booked a guest spot on an upcoming episode of 'Two and a Half Men.' The 'Battlestar Galactica' alum will play a close friend of Charlie's fiancee, Chelsea, who crashes at the Harper house after a bad breakup. Helfer's guest spot will air Nov. 16 on CBS. [Ausiello Files]

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If you were asked "Who is Penn Badgley?," you would probably say something like "Isn't he the guy from Gossip Girl?" Yes, he is. Others would probably answer with "The curly haired cutie from The Mountain?" Again, correct. But what did he do before that? Silence would probably be the most popular answer since it seemed as if he first made his mark during the canceled-rather-fast WB's The Mountain. But what may surprise most is that Penn Badgley has been in the business for almost 10 years!