Birthday: Nov. 30, 1985
Hometown: Camarillo, Calif.
Where You’ve Seen Her: Kaley got her showbiz start at a young age with gigs on My So-Called Life, 7th Heaven and CSI, but she made the transition from child actor to grownup seamlessly with a role on 8 Simple Rules. She's continued to showcase her skills on Prison Break and with a guest spot on The CW's babe fave, Gossip Girl. This blonde bombshell—and Maxim cover girl—currently holds our attention in her role as Penny, the hottest girl next door—ever!—on The Big Bang Theory (Thursdays at 8/7c on CBS).
Hit Her With Your Best Shot: "Men have always been afraid to come talk to me and hit on me. I really mean that. They're just afraid to come up and hit on me. But I'm up for any sort of people hitting on me."—Maxim
See more sexy photos of Kaley and check out the action behind her cover shoot.