Peter Gallagher Sandy Cohen Actor Ben McKenzie Ryan Atwood Actor Kelly Rowan Kirsten Cohen Actor Adam Brody Seth Cohen Actor Mischa Barton Actor Rachel Bilson Summer Roberts Actor Melinda Clarke Julie Cooper Actor Alan Dale Actor Willa Holland Kaitlin Cooper Guest Star Michael Nouri Guest Star Jeff Hephner Guest Star Johnny Lewis Guest Star Nikki Reed Guest Star Lisa Rotondi Guest Star Jackson Rathbone Guest Star Morena Baccarin Guest Star Cam Gigandet Guest Star Ian Novotny Guest Star Gisele Bündchen Guest Star Bug Hall Guest Star Cassie Jaye Guest Star Chris Kerner Guest Star Josh Schwartz Executive Producer Doug Liman Executive Producer McG Executive Producer David Bartis Executive Producer Robert DeLaurentiis Executive Producer