a.k.a. Chuck Bass
Westwick kept a low profile after playing the bad boy hotel heir – but that's about to change. Like his costar (and former roommate) Chace Crawford, the British actor, 27, has been cast in an ABC pilot: He nabbed the role of a serial killer in L.A. Crimes, Deadline Hollywood reports. If he draws on Chuck's dark side – assaulting Jenny, trading Blair for a hotel, living a double life as a French pauper, etc. – he'll do just fine.