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 Justina Machado Vanessa Diaz Actor Jeremy Sisto Billy Chenowith Guest Star Joanna Cassidy Margaret Chenowith Guest Star Tina Holmes Maggie Sibley Guest Star Jennifer Elise Cox Guest Star C.J. Sanders Guest Star Lisa Banes Guest Star Rosalind Chao Guest Star Mia Wesley Guest Star Meagen Fay Guest Star Mary Gillis Guest Star Ron Dean Guest Star Danny Goldring Guest Star Jack Wallace Guest Star Andy Milder Guest Star Drake Johnston Guest Star Braeden Lemasters Guest Star Alan Ball Executive Producer