| Aury Krebs (Le Dr. Dana Dang) |
| Ashleigh LaThrop (Le Dr. Ericka Kinney) |
| Alex MacNicoll (Le Dr. Van Markus) |
| Spence Moore II (Le Dr. Jacob Nash) |
| Tamberla Perry (Le Dr. Carol Pierce) |
| Zachary Quinto (Le Dr. Oliver Wolf) |
| Teddy Sears (Le Dr. Josh Nichols) |
| Kristopher Turner (Kevin Sullivan) |
| Jim Watson (Patrick Sullivan) |
| Ted Sutherland (Oliver adolescend) |
| Julia Chan (Alison Zhang-Whitaker) |
| Susan Bay (June Sullivan) |
| Andrew Horton (Tom Price) |
| Donna Murphy (Le Dr. Muriel Landon) |
| James M Jenkinson (Walt) |
| Henry Gomez (Lou) |