| Name (Sort) | Character (Sort) | |
| •Erica Durance | played | Dr. Alex Reid (32Eps.) |
| •Daniel Gillies | played | Dr. Joel Goran (31Eps.) |
| •Husein Madhavji | played | Dr. Shahir Hamza (25Eps.) |
| •Julia Taylor Ross | played | Dr. Maggie Lin (31Eps.) |
| •Kristopher Turner | played | Dr. Gavin Murphy (30Eps.) |
| •Michelle Nolden | played | Dr. Dawn Bell (18Eps.) |
| •Ben Ayres | played | Dr. Zachary Miller (29Eps.) |
| •K.C. Collins | played | Dr. Tom Reycraft (25Eps.) |
| •Glenda Braganza | played | Dr. Melanda Tolliver (23Eps.) |
| •Salvatore Antonio | played | Nurse Victor Reis (26Eps.) |
| •Joseph Pierre | played | Nurse Jackson Wade (20Eps.) |
| •Wendy Crewson | played | Dr. Dana Kinney (13Eps.) |
| •Michael Shanks | played | Dr. Charles Harris (32Eps.) |