Goran Visnjic Dr. Luka Kovac Actor Maura Tierney Abby Lockhart Actor Mekhi Phifer Dr. Gregory Pratt Actor Parminder Nagra Dr. Neela Rasgotra Actor Linda Cardellini Nurse Samantha Taggart Actor Shane West Actor Scott Grimes Dr. Archie Morris Actor Laura Innes Dr. Kerry Weaver Actor John Stamos Dr. Tony Gates Actor John Aylward Dr. Donald Anspaugh Guest Star Gina Ravera Dr. Bettina DeJesus Guest Star Rebecca Field Psych woman Guest Star J.P. Manoux Dr. Dustin Crenshaw Guest Star Angel Laketa Moore Nurxe Dawn Archer Guest Star Annabella Sciorra Diana Moore Guest Star Brian Lester Brian Dumar Guest Star Malaya Drew Rivera Katey Alvaro Guest Star Deezer D Nurse Malik McGrath Guest Star Laura Cerón Nurse Chuny Marquez Guest Star Stacy Keach Mike Gates Guest Star Yorgo Constantine Trekkie Guest Star Demetrius Navarro Morales Guest Star Chloe Greenfield Sarah Riley Guest Star Glenn Plummer Timmy Rawlins Guest Star Maestro Harrell Todd Guest Star Sam Jones III Chaz Pratt Guest Star Christopher Chulack Executive Producer Michael Crichton Executive Producer David Zabel Executive Producer John Wells Executive Producer R. Scott Gemmill Executive Producer