Peter Krause Nate Fisher Jr. Actor Rachel Griffiths Brenda Chenowith Actor Richard Jenkins Nathaniel Fisher Sr. Actor Frances Conroy Ruth Fisher Actor Michael C. Hall David Fisher Actor Lauren Ambrose Claire Fisher Actor Freddy Rodríguez Federico Diaz Actor Mathew St. Patrick Keith Charles Actor Lili Taylor Lisa Kimmel Fisher Guest Star Glenn Fitzgerald Aaron Buchbinder Guest Star Ed O'Ross Nikolai Guest Star Larry Drake Inspector Gerson Guest Star Justina Machado Vanessa Diaz Guest Star Marina Black Parker McKenna Guest Star Grant Show Scott Axelrod Guest Star Geoffrey Nauffts Dr. DiPaolo Guest Star Deirdre O'Connell LAC Arts Interviewer Guest Star J.P. Pitoc Crematory Guy Guest Star Daniel Roebuck Male Sex Addict Guest Star Patrice Walters Anesthesiologist Guest Star Alan Ball Executive Producer