Dave Annable Justin Walker Actor Maxwell Perry Cotton Cooper Whedon Actor Kerris Dorsey Paige Actor Sally Field Nora Holden Actor Calista Flockhart Kitty Walker Actor Balthazar Getty Thomas Walker Actor Rachel Griffiths Sarah Walker Actor Rob Lowe Sen. Robert McCallister Actor Luke Macfarlane Scotty Wandell Actor Sarah Jane Morris Julia Walker Actor Matthew Rhys Kevin Walker Actor Ron Rifkin Saul Holden Actor Emily VanCamp Rebecca Harper Actor Patricia Wettig Holly Harper Actor Sonja Sohn Trish Evans Guest Star Steven Weber Graham Finch Guest Star Eric Christian Olsen Kyle DeWitt Guest Star Will McCormack Ethan Tavis Guest Star Jesse Henecke Chris Ward Guest Star Maura Soden Dr. Barbara Riley Guest Star Ken Olin Executive Producer Jon Robin Baitz Executive Producer Marti Noxon Executive Producer Nancy Won Writer Jason Wilborn Writer Michael Morris Director