Dylan Walsh Dr. Sean McNamara Actor Julian McMahon Dr. Christian Troy Actor John Hensley Matt McNamara Actor Joely Richardson Julia McNamara Actor Roma Maffia Dr. Liz Cruz Actor Peter Dinklage Marlowe Sawyer Guest Star Mo'Nique Evetta Washington Guest Star Ruth Williamson Hedda Grubman Guest Star Allison Smith Kathleen McNamara Guest Star Anthony Starke Tom McNamara Guest Star Stephen Lee Mr. Thompson Guest Star Eric Steinberg Dr. Mugavi Guest Star Kelsey Batelaan Annie McNamara Guest Star Travis T. Flory Morgan Thompson Guest Star Kendall Ryan Sanders Young Sean Guest Star Burt Bacharach Himself Guest Star Haynes Brooke Coach Guest Star Linda Klein Nurse Linda Guest Star