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 James Cromwell George Sibley Actor Jeremy Sisto Billy Chenowith Guest Star Joanna Cassidy Margaret Chenowith Guest Star Ben Foster Russell Corwin Guest Star Justina Machado Vanessa Diaz Guest Star Michael Weston Guest Star Peter Facinelli Jimmy Guest Star Peter Macdissi Olivier Castro-Staal Guest Star Sprague Grayden Anita Guest Star Julie Dretzin Guest Star Jeff Yagher Guest Star Tina Holmes Maggie Sibley Guest Star Matt Malloy Guest Star J.G. Hertzler Guest Star Lucinda Jenney Guest Star Scott Burkholder Guest Star Brent Roam Guest Star Jenni Blong Guest Star Alicia Brandt Guest Star Dwayne Barnes Guest Star Janice Lynde Guest Star Nicole Richie Guest Star Steffani Brass Guest Star Matt Hannigan Guest Star Alan Ball Executive Producer