| Name | Character | Episodes |
|---|---|---|
| Inga Schlingmann | Dr. Sasha Lubbock | 6 |
| Eve Harlow | Dr. Ingrid Derian | 3 |
| Morris Chestnut | Dr. John Watson | 3 |
| Ritchie Coster | Shinwell Johnson | 3 |
| Peter Mark Kendall | Dr. Stephens Croft / Dr. Adam Croft | 3 |
| Rochelle Aytes | Dr. Mary Morstan | 3 |
| Randall Park | Moriarty | 1 |
| Djouliet Amara | Molly Jones | 1 |
| Shannon Berry | Autumn Franco | 1 |
| Anjelica Bette Fellini | Erika Filipello | 1 |
| Tommy O'Brien | Zach | 1 |
| Lauren Bradley | Karine Tanner | 1 |
| Aman Mann | Bike Messenger | 1 |
| Jean Zarzour | Erika's Mother | 1 |
| Lesley Mirza | Prenatal Nurse | 1 |
| Jared Canfield | Dr. Brody Davis-Emerson | 1 |
| Kevin Vidal | Nurse | 1 |