Joe Mantegna Will Girardi Actor Mary Steenburgen Helen Girardi Actor Amber Tamblyn Joan Girardi Actor Michael Welch Luke Girardi Actor Jason Ritter Kevin Girardi Actor Russ Tamblyn Guest Star Chris Marquette Guest Star Becky Wahlstrom Guest Star Aaron Himelstein Guest Star Sprague Grayden Guest Star Annie Potts Guest Star Jayne Atkinson Guest Star Michael N. Chinyamurindi Guest Star Charlie Koznick Guest Star Karoly Bieganowski Guest Star Ansel Caine Guest Star Scott Conte Guest Star Claudia Choi Guest Star Clement von Franckenstein Guest Star Barbara Hall Executive Producer James Hayman Executive Producer Elodie Keene Director Stephen Nathan Writer