Discover
Original Release
12/14/1971
US Release
12/14/1971
Cast
| Name | Character |
|---|
| William Conrad | Frank Cannon |
| Fritz Weaver | Leo Kern |
| Lynn Carlin | Helen Kern |
| Richard O'Brien | Charlie Clausen |
| Robert Webber | McMillan |
| Jeanne Cooper | Silvia Barberio |
| Barney Phillips | Inspector Daniels |
| Hal England | Captain Holland |
| Colin Male | Kirstlake |
| John Graham | Benson |
Directors
Writers
Cast
| Name | Character |
|---|
| William Conrad | Frank Cannon |
| Fritz Weaver | Leo Kern |
| Lynn Carlin | Helen Kern |
| Richard O'Brien | Charlie Clausen |
| Robert Webber | McMillan |
| Jeanne Cooper | Silvia Barberio |
| Barney Phillips | Inspector Daniels |
| Hal England | Captain Holland |
| Colin Male | Kirstlake |
| John Graham | Benson |
| Thom Carney | Mechanic |
| Phil Montgomery | Lightman |
| Patrick Riley | Night Guard |
| Murray Pollack | Executive |
| Tony Regan | Detective |
| Clark Ross | Executive |
Producers
| Name | Role |
|---|
| Quinn Martin | Executive Producer |
| Alan A. Armer | Producer |
| Adrian Samish | Producer |
| Paul Playdon | Producer |
