Hugh Laurie Dr. Gregory House Actor Lisa Edelstein Dr. Lisa Cuddy Actor Omar Epps Dr. Eric Foreman Actor Robert Sean Leonard Dr. James Wilson Actor Jennifer Morrison Dr. Allison Cameron Actor Jesse Spencer Dr. Robert Chase Actor Peter Jacobson Dr. Chris Taub Guest Star Kal Penn Dr. Lawrence Kutner Guest Star Olivia Wilde Thirteen, Dr. Remy Hadley Guest Star Anne Dudek Dr. Amber Volakis Guest Star Jason Lewis Evan Greer Guest Star Rob Benedict Dr. Jaime Conway Guest Star Kristina Anapau Marie Guest Star Lisa Claire Lab Tech Guest Star Dominic Flores Pharmacist Guest Star Paul Attanasio Executive Producer Katie Jacobs Executive Producer David Shore Executive Producer Bryan Singer Executive Producer David Straiton Director Sara Hess Writer Liz Friedman Writer