| Name | Character | Episodes |
|---|---|---|
| Joe Don Baker | Earl Eischied | 13 |
| Alan Oppenheimer | Captain Finnerty | 13 |
| Raymond Burr | Police Commissioner | 2 |
| Ellen Travolta | 2 | |
| James Stephens | 2 | |
| Karen Valentine | 2 | |
| Sandy Helberg | 2 | |
| Robert Ginty | 1 | |
| Belinda Montgomery | 1 | |
| Bibi Besch | 1 | |
| Michael Pataki | 1 | |
| Jim Backus | 1 | |
| Darleen Carr | 1 | |
| Ron Masak | 1 | |
| Mel Ferrer | 1 | |
| Joe Santos | 1 | |
| Bruce Kirby | 1 | |
| Silvana Gallardo | 1 | |
| Cesare Danova | 1 | |
| Jerry Douglas | 1 | |
| Christopher Connelly | 1 | |
| Shelley Berman | 1 | |
| Tom Ewell | 1 | |
| Christopher Stone | 1 | |
| Jed Allan | 1 | |
| David Raynr | 1 | |
| John Cunningham | 1 | |
| Roger Robinson | 1 | |
| Stephen Pearlman | 1 |