Peter Gallagher Sandy Cohen Actor Benjamin 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 Brown Guest Star Kevin Sorbo Guest Star Bridgett Newton Guest Star Wayne Dalglish Guest Star Corey Price Guest Star William Duffy Guest Star Sydney Dace Guest Star Josh Schwartz Executive Producer Doug Liman Executive Producer McG Executive Producer David Bartis Executive Producer Robert DeLaurentiis Executive Producer