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 Rainn Wilson Arthur Martin Guest Star Lili Taylor Lisa Kimmel Fisher Guest Star Jeremy Sisto Billy Chenowith Guest Star Ben Foster Russell Corwin Guest Star Justina Machado Vanessa Diaz Guest Star Peter Macdissi Olivier Castro-Staal Guest Star James Pickens Jr. Guest Star Beverly Todd Guest Star Aysia Polk Guest Star David Hornsby Guest Star Ann Weldon Guest Star Michael James Reed Guest Star Manuel Urrego Guest Star Linda Cevallos Guest Star Alan Ball Executive Producer