| Name | Character | Episodes |
|---|---|---|
| Clancy Brown | 40 | |
| Charles Shaughnessy | Maj. Drake Alexander Wallis III | 40 |
| Michael Chiklis | 40 | |
| Nicholas Guest | 40 | |
| David DeLuise | 40 | |
| Sarah Douglas | 40 | |
| Karen Maruyama | 40 | |
| Greg Ellis | 40 | |
| Lukas Haas | Marcus Rover (voice) | 40 |
| Keith Szarabajka | 40 | |
| Tom Kane | 40 | |
| Jim Wise | 40 |