Peter Gallagher Sandy Cohen Actor Ben McKenzie Ryan Atwood Actor Kelly Rowan Kirsten Cohen Actor Adam Brody Seth Cohen Actor Mischa Barton Marissa Cooper Actor Tate Donovan Jimmy Cooper Actor Melinda Clarke Julie Cooper Actor Chris Carmack Luke Ward Actor Rachel Bilson Summer Roberts Actor Amanda Righetti Guest Star Navi Rawat Guest Star Lamont Thompson Guest Star Holly Fields Guest Star Alan Dale Caleb Nichol Actor Shailene Woodley Guest Star Hamilton Mitchell Guest Star Jay Kenneth Johnson Guest Star Andrea Davis Guest Star Jem Guest Star Alison Hills Guest Star Josh Schwartz Executive Producer Doug Liman Executive Producer McG Executive Producer David Bartis Executive Producer Robert DeLaurentiis Executive Producer Patrick R. Norris Director