| Name | Character | Episodes |
|---|---|---|
| Ken Curtis | Jim Buckley | 111 |
| Allison Hayes | Laura | 111 |
| Larry Pennell | 111 | |
| Shug Fisher | 111 | |
| Paul Comi | 111 | |
| Tim Matheson | David | 1 |
| Lester Matthews | Hugh Olds | 1 |
| Forrest Taylor | Martin Seims | 1 |
| Philip Ober | Dr. Ladd | 1 |
| Russell Johnson | 1 | |
| Paul Maxey | Sam Breckridge | 1 |