| Episode credited cast: |
 | Christopher Timothy | - | Dr. Brendan 'Mac' McGuire |
 | Mark Frost | - | Dr. Steve Rawlings (credit only) |
 | Corrinne Wicks | - | Dr. Helen Thompson (credit only) |
 | Akbar Kurtha | - | Dr. Rana Mistry (credit only) |
| Jacqueline Leonard | - | Dr. Caroline Powers |
 | Maggie Cronin | - | Kate McGuire (credit only) |
| Yvonne Brewster | - | Ruth Harding |
| Sarah Manners | - | Joanna Helm |
| Rest of cast listed alphabetically: |
| Adam Allfrey | - | Jonathon Wright |
| Louise Bush | - | Patricia |
| Jaq Croft | - | Jane Stanley |
 | Andrea Davy | - | DC Janet Dench |
| Joanna John | - | Lindsey Stone |
| Peggy Shields | - | Enid Wright |
 | Christopher Strauli | - | Paul Woodford |
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