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 Michael Nouri Guest Star Brandon Quinn Guest Star Gerard Ismael Guest Star Wayne Dalglish Guest Star Corey Price Guest Star Jesse Burch Guest Star Craig Susser Guest Star Ashley Hartman Guest Star Jessica Friedman Guest Star Ellen Woglom Guest Star Xavier J. Nathan Guest Star Brian Guest Guest Star Scott Krinsky Guest Star David Stifel Guest Star Scott Rodgers Guest Star Josh Schwartz Executive Producer Doug Liman Executive Producer McG Executive Producer David Bartis Executive Producer Robert DeLaurentiis Executive Producer