The Deadly Riddle (1956) — Cast
Cast
| Jacques Sernas | Gawaine |
| Torin Thatcher | Red |
| Natalie Wood | Marian |
| Geoffrey Toone | King Randor |
| Mary Ellen Kay | Guinevere Pettigrew |
Crew
| Robert Stafford | Editor |
| Geoffrey Chaucer | Original Story |
| Roy Huggins | Producer |
| Harold E. Stine | Cinematography |
| Muriel Roy Bolton | Teleplay |
| William T. Orr | Executive Producer |
| Roy Huggins | Adaptation |
| Don Weis | Director |