As the perpetual 90210 good guy, Jason Priestley put the heart in Brandon Walsh's heartthrob status. Since leaving the halls of Casa Walsh in 1998 (he did return for the 2000 finale), Jase continued to act, and recently starred in Lifetime's now defunct drama Side Order of Life. He's also putting the directing experience he acquired on the show to good use, by getting behind the scenes for the network's movie, The Other Woman. Off-camera, Jason's real life has had its fill of drama—the actor got badly banged up in a racecar accident in 2002, married makeup artist Naomi Lowde in 2005, and became a daddy to his baby girl Ava in '07.

Quiz: Do you know TV high school trivia?