| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Al Teeter | Crew | Editing | Editor | |
 Bill Walsh | Crew | Production | Producer | 35 |
Bruce Bushman | Crew | Art | Art Direction | |
Charles F. Haas | Crew | Directing | Director | 20 |
Chuck Keehne | Crew | Costume & Make-Up | Costume Designer | |
 David Newell | Crew | Costume & Make-Up | Makeup Supervisor | |
Dean Thomas | Crew | Sound | Sound Mixer | |
Fred M. MacLean | Crew | Art | Set Designer | |
George Jay Nicholson | Crew | Editing | Editor | |
Gordon Avil | Crew | Crew | Cinematography | |
Jackson Gillis | Crew | Writing | Teleplay | 35 |
Joseph Dietrick | Crew | Editing | Editor | |
Lois Murray | Crew | Costume & Make-Up | Hairstylist | |
Marvin Aubrey Davis | Crew | Art | Art Direction | |
 R.G. Springsteen | Crew | Directing | Director | 15 |
Robert G. Shannon | Crew | Directing | Assistant Director | |
Robert O. Cook | Crew | Sound | Sound | |
 Thurl Ravenscroft | Crew | Sound | Theme Song Performance | |
 Ub Iwerks | Crew | Visual Effects | Visual Effects | |
Walter Castle | Crew | Crew | Cinematography | |
 William Lava | Crew | Sound | Music | |
Louis Debney | Crew | Production | Production Assistant | |
Edle Bakke | Crew | Directing | Script Supervisor | |
Carl Walker | Crew | Costume & Make-Up | Wardrobe Supervisor | |
Russ Haverick | Crew | Production | Production Manager | |
 Edward Stratemeyer | Crew | Writing | Novel | 35 |
 Andy Clyde | Cast | Actor | Lacey | 15 |
 Arthur Shields | Cast | Actor | Boles - Ex-Gardener | 20 |
Brick Sullivan | Cast | Actor | Policeman | |
Carole Ann Campbell | Cast | Iola Morton | 35 | |
 Charles Cane | Cast | Actor | Police Sergeant | |
 Dan Sturkie | Cast | Actor | Police Detective | |
 Don C. Harvey | Cast | Actor | Policeman | |
Donald MacDonald | Cast | Actor | Perry Robinson | 20 |
 Florenz Ames | Cast | Actor | Silas Applegate | 20 |
 Frances Morris | Cast | Actress | Landlady | |
 Hugh Sanders | Cast | Actor | Mr. Binks | 15 |
Jess Kirkpatrick | Cast | Actor | Policeman | |
 John Baer | Cast | Actor | Eric | 15 |
 Mort Mills | Cast | Actor | policeman | |
 Robert Foulk | Cast | Actor | Jackley the Plumber | 20 |
 Russ Conway | Cast | Actor | Fenton Hardy | 35 |
 Sarah Selby | Cast | Actress | Aunt Gertrude | |
 Tim Considine | Cast | Actor | Frank Hardy | 35 |
 Tommy Kirk | Cast | Actor | Joe Hardy | 35 |
 William Henry | Cast | Actor | Policeman | |
| Person | Type | Job | Role(s) | Episodes |
