| Name | Character | Episodes |
|---|---|---|
| Peter Phelps | Sr. Dennis Taylor | 13 |
| Lewis Fitz-Gerald | Dr. Sebert Blitho | 13 |
| Sophie Lee | Penny Wellings | 13 |
| Kevin J. Wilson | Ted Eastman | 13 |
| Simone Buchanan | Rebecca Owens | 13 |
| Steve Jacobs | Dr. Jim Solomon | 13 |
| Mike Bishop | Evelyn Whaley | 3 |
| Radha Mitchell | Tracey | 2 |
| Frank Magree | Kingy | 2 |
| Mark Little | Jack Buxton | 2 |
| Lisa McCune | Jane | 1 |
| Roderick Williams | Justin Honeyman | 1 |
| John Edwards | Pirate | 1 |
| Tom E. Lewis | Kilampi | 1 |
| Tom E. Lewis | Kilampa | 1 |
| Penelope Stewart | Rita Whaley | 1 |
| Randall Berger | Eugene O'Rourke | 1 |
| Petra Yared | Sarah Aldridge | 1 |
| Stephen Hall | Keith Bainbridge | 1 |
| Peter Cummins | Reg Matthews | 1 |