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 David Morse Michael Tritter Guest Star Kacie Borrowman Abigail Ralphean Guest Star Meredith Eaton Maddy Ralphean Guest Star Michael Medico Clinic Doctor Guest Star Teddy Vincent Mrs. Zebalusky Guest Star Shyann McClure Little Girl Guest Star Marco Pelaez Hospital Pharmacist Guest Star Cole Evan Weiss Teenage Boy Guest Star Bobbin Bergstrom Nurse Guest Star Paul Attanasio Executive Producer Katie Jacobs Executive Producer David Shore Executive Producer Bryan Singer Executive Producer Tony To Director Liz Friedman Director