| Name | Character | Episodes |
|---|---|---|
| Tom Skerritt | President Stanfield | 2 |
| Greta Scacchi | Helen Madigan | 2 |
| Paul Gross | Thomas David McLaughlin | 2 |
| Stephen McHattie | Jack Shea | 2 |
| Kenneth Welsh | Randall Spear | 2 |
| Clark Johnson | John Neelon | 2 |
| Saul Rubinek | Rafe Kott | 2 |
| Rachael Crawford | Colleen Howell | 2 |
| Rick Cosnett | Will Tullman | 2 |
| Martha Burns | Mary Miller | 2 |
| Julian Richings | Barrie | 1 |
| Sherry Miller | Finola Halliwell | 1 |