Mary McCormack Mary Shannon Actor Frederick Weller Marshall Mann Actor Nichole Hiltz Brandi Shannon Actor Paul Ben-Victor Stan McQueen Actor Rachel Boston Detective Abigail Chaffee Actor Joshua Malina Peter Alpert Guest Star Daniella Alonso Sue Shears , Sue Stills Guest Star Jake McLaughlin John Shears , John Stills Guest Star Ali Marsh Dr. Shelley Finkel Guest Star Joel Gretsch Major Lucas Provo Guest Star Bardia Mattin Sgt. Loverro Guest Star Timothy J. Sipp Major Filk Guest Star Chirag Patel Head Taliban Guy Guest Star Deborah Martinez Tour Guide Guest Star Lauren Myers Waitress Guest Star Bryan Spicer Director Barbara Nance Writer