Peter Gallagher Sandy Cohen Actor Ben McKenzie Ryan Atwood Actor Rachel Bilson Summer Roberts Actor Adam Brody Seth Cohen Actor Kelly Rowan Kirsten Cohen Actor Melinda Clarke Julie Cooper Actor Autumn Reeser Taylor Townsend Actor Willa Holland Kaitlin Cooper Actor Chris Pratt Guest Star Cam Gigandet Guest Star Tia Carrere Guest Star Michelle Ongkingco Guest Star Steve-O Guest Star Johnny Michaels Guest Star Wayne Dalglish Guest Star Corey Price Guest Star Sandra Eloani Guest Star Lizelle Gutierrez Guest Star Josh Schwartz Executive Producer Doug Liman Executive Producer McG Executive Producer David Bartis Executive Producer Robert DeLaurentiis Executive Producer