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 Christopher Cousins Doug Guest Star Lisa Darr Emily Guest Star James Immekus Adam Guest Star Dan Butler Dr. Weber Guest Star Stephanie Venditto Nurse Brenda Previn Guest Star Michael Merton Anesthesiologist Guest Star Judy Louise Johnson Surgeon Guest Star Dorothea Harahan E.M.T. Guest Star Kristen Pate Paula Guest Star Paul Attanasio Executive Producer Katie Jacobs Executive Producer David Shore Executive Producer Bryan Singer Executive Producer Dan Attias Director Lawrence Kaplow Writer