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 Bruno Campos Dr. Quentin Costa Actor Kelly Carlson Kimber Henry Actor Vanessa Redgrave Dr. Erica Noughton Guest Star Famke Janssen Ava Moore Guest Star Robin Bartlett Dr. Meredith Forsythe Guest Star Jose Pablo Cantillo Marlon Ramirez Guest Star Willam Belli Cherry Peck Guest Star Monnae Michaell Detective Bowser Guest Star Linda Klein Nurse Linda Guest Star Ricky Trammell Hallie Guest Star Ben Hernandez Bray Guest Star Geo Corvera Guest Star Don Li Yat-Long Guest Star Danielle Vasinova Lisa Guest Star