| Name | Character | Episodes |
|---|---|---|
| Dean Fredericks | Lt. Col. Steve Canyon | 34 |
| Claude Akins | Sgt. Brecker | 1 |
| Nick Adams | Sgt. Korman | 1 |
| Martin Milner | Sgt. Ernest Bigelow | 1 |
| John Doucette | Col. Dorrance | 1 |
| Jacqueline Scott | Pat Hammer | 1 |
| Douglas Henderson | Lt. Mahoney | 1 |
| Paul Maxwell | Maj. Russell | 1 |
| Ron Ely | Pete Randall | 1 |
| Barney Phillips | Flight Surgeon | 1 |
| Robert Sampson | Sgt. Walsh - Tower Operator | 1 |
| Ted de Corsia | Police Chief Hagedorn | 1 |
| Patricia Blair | Janice Taft | 1 |
| Paul Mantee | Sgt. Taliman | 1 |
| Werner Klemperer | Linz | 1 |
| Michael Hinn | General Trevor | 1 |
| William Schallert | Major Karl Richmond | 1 |
| Read Morgan | Ray Gorski | 1 |
| Jerry Paris | Maj. 'Willie' Williston | 1 |
| Ron Nyman | Pilot (uncredited) | 1 |
| George Brenlin | Lt. Collins | 1 |
| Wesley Lau | Sgt. Bowman | 1 |
| John Gallaudet | Col. Hackley | 1 |
| Russell Johnson | Maj. Pitch Hammer | 1 |
| Lewis Charles | Mile Away Jones | 1 |
| Ray Montgomery | Col. Frye | 1 |
| Valerie Allen | Amy St. John | 1 |
| Abel Fernandez | Airman Abel Featherstone | 1 |
| Abel Fernandez | Sgt. Abel Featherstone | 1 |
| Eric Feldary | Gyorgy | 1 |
| Robert F. Simon | Col. Hampton | 1 |
| Jackson Beck | Announcer (uncredited) | 1 |