| Name | Character | Episodes |
|---|---|---|
| Michael Nouri | Jean Roger des Barres | 3 |
| Shawn Stevens | Bobby | 3 |
| Sam Weisman | Mel | 3 |
| Perry King | Russ Currier | 3 |
| Kim Darby | Ann Rowan | 3 |
| Tracy Brooks Swope | Liz Baynor | 3 |
| Vic Morrow | Chief Lonborg | 3 |
| Stacey Nelkin | Sheila Garrigan | 3 |
| Martin Milner | Sgt. Dabric | 3 |
| Edward Albert | Ron Dalrymple | 3 |
| Pat Harrington, Jr. | Maj. Fred Goodman | 3 |
| Bruce Boxleitner | George Virdon | 3 |
| Lisa Pelikan | Rosamond Ardley | 3 |
| Stuart Whitman | Col. Hiram Elkhart | 3 |
| John Houseman | Dr. Wetherell | 3 |
| Deborah Raffin | Chris Farris | 3 |
| Sharon Gless | Kay Haddon | 3 |
| Ron Rubin | Glenn Miller | 3 |
| Fred McCarren | Paul McCreed | 3 |
| Caroline Smith | Nancy Van Breymer | 3 |
| John Shea | Terry Garrigan | 3 |