Mary McCormack Mary Shannon Actor Frederick Weller Marshall Mann Actor Nichole Hiltz Brandi Shannon Actor Paul Ben-Victor Stan McQueen Actor Joshua Malina Peter Alpert Guest Star Aaron Ashmore Scott Griffin Guest Star Esteban Powell Walter Cooper , Walter Bleymeyer Guest Star Erika Alexander Theresa Simmons Guest Star Keith Nobbs Charlie Connor Guest Star James Read Damon Schmidt Guest Star Matt Winston Tim Bickman Guest Star Susan Chuang Abby Montgomery Guest Star Charles Gamble Stranger 1 Guest Star J. Paul Zimmerman Stranger 2 Guest Star Galen Hutchison Vance Guest Star Bryan Spicer Director Brynn Malone Writer