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 Ken Olin David Caplan Guest Star, Executive Producer Luke Grimes Ryan Lafferty Guest Star Matt Letscher Alec Tyler Guest Star Luc Charbonnier Ben Guest Star Eric Christian Olsen Kyle DeWitt Guest Star Will McCormack Ethan Tavis Guest Star Megan Follows Maggie Stephens Guest Star Joe O'Connor Harvey Childs Guest Star Beth Kennedy Dr. Flackett Guest Star Pamela Shaddock Board Member 1 Guest Star Jon Robin Baitz Executive Producer Marti Noxon Executive Producer Jason Wilborn Writer Nancy Won Writer Michael Schultz Director