| Role | Character | Notable Appearance |
| Family Member | |
| Surgeon | |
| Ex-Girlfriend | |
| Ex-Girlfriend | |
| Former Patient, deceased | |
| Former Patient, deceased | |
| Former Nurse, deceased | |
| Intern | |
| Surgeon | |
| Attorney | |
| Member of the Worthless Peons | |
| Member of the Worthless Peons | |
| Member of the Worthless Peons | |
| Music Therapist | |
| Intern/Barista | |
| Former Singing Patient | |
| Former Patient | |
| Strolling Minstrel | |
| Surgeon | |
| Delivery Truck Driver/Ambulance Driver/Member of the Braintrust | |
| Hospital Administrator | |
| Medical Resident | |
| Medical Attending Physician | |
| | Role | Character | Notable Appearance |
| Dermatologist/Trust Fund Recipient | |
| Former Patient, deceased | |
| Popcorn-Munching Intern | |
| Cafeteria Worker/Member of the Braintrust | |
| Custodial Worker | |
| Intern | |
| Intern | |
| Nurse | |
| Hook-Handed Security Guard | |
| Elderly Intern | |
| Medical Attending Physician | |
| Gynecologist | |
| Orderly Erroneously Known as Frank | |
| Former Patient, Deceased | |
| Surgeon | |
| The Overly Touchy Orderly | |
| Medical Attending Physician | |
| Intern | |
| Intern | |
| Intern/Resident/Attending Physician | |
| Medical Attending Physician | |
| Surgeon | |
|