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 Chris Brown Guest Star Henri Lubatti Guest Star Brandon Quinn Guest Star Julia Ling Guest Star Lorna Scott Guest Star Wyndoline Landry Guest Star Kirstin Pierce Guest Star Stacy Barnhisel Guest Star Eden Sher Guest Star Crystal Havens Guest Star Josh Schwartz Executive Producer Doug Liman Executive Producer McG Executive Producer David Bartis Executive Producer Robert DeLaurentiis Executive Producer