| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Jack Webb | Crew | Creator | Creator | |
 William Conrad | Crew | Directing | Director | 1 |
 Carla Hadley | Crew | Costume & Make-Up | Hairstylist, Makeup Artist | 25 |
 Adam Williams | Cast | Actor | Harmony Brown | 1 |
 Anne Francis | Cast | Actress | Kate Fitzpatrick | 1 |
 Audrey Dalton | Cast | Actress | Amy Hart | 1 |
 Brenda Scott | Cast | Actress | Ruth | 1 |
 Charles Seel | Cast | Actor | Henry Hicks | 1 |
 Chubby Johnson | Cast | Actor | Concho | 26 |
 Claude Stroud | Cast | Actor | 2 | |
 Connie Stevens | Cast | Actress | Charity Simpson | 1 |
 Dave Willock | Cast | Actor | Speedy Jackson | 2 |
 Dayton Lummis | Cast | Actor | Col. Bob Grainger | 1 |
 Del Monroe | Cast | Actor | 1 | |
 Don Kennedy | Cast | Actor | Ike Hobbs | 1 |
 Douglas Fowley | Cast | Actor | Doc Webb | 1 |
 Edward Platt | Cast | Actor | 1 | |
 Frank Ferguson | Cast | Actor | Judge Gurney | 26 |
 George Lindsey | Cast | Actor | 1 | |
 Grace Lee Whitney | Cast | Actress | Tangerine O'Shea | 1 |
 H.M. Wynant | Cast | Actor | Jered Mallory | 1 |
 Herb Vigran | Cast | Actor | 2 | |
 Herbert Lytton | Cast | Actor | 1 | |
 J. Pat O'Malley | Cast | Actor | Joshua C. Merry | 1 |
 Jack Elam | Cast | Actor | George Taggart | 26 |
 Jeffrey Hunter | Cast | Actor | Temple Lea Houston | 26 |
Joan Swift | Cast | Actress | Woman (uncredited) | 1 |
Joe Dominguez | Cast | Actor | 1 | |
 John Baer | Cast | Actor | Frank McGuire | 1 |
 John Lupton | Cast | Actor | Sinclair | 1 |
 Kenneth Tobey | Cast | Actor | Dan Powers | 1 |
 Len Lesser | Cast | Actor | Orley Baldwin | 1 |
 Leo Gordon | Cast | Actor | Charles Grimm | 1 |
Lovyss Bradley | Cast | Actress | 1 | |
 Marianna Hill | Cast | Actress | 1 | |
 Mary Wickes | Cast | Actress | Ida Goff | 26 |
 Noah Beery Jr. | Cast | Actor | Bailey | 1 |
 Norman Alden | Cast | Actor | Carlton Owens | 1 |
Pat Cardi | Cast | Actor | Billy Hart | 1 |
 Paul E. Burns | Cast | Actor | 1 | |
 Penny Santon | Cast | Actress | Senora Ortega | 1 |
 Percy Helton | Cast | Actor | 1 | |
 Robert "Buzz" Henry | Cast | Actor | 2 | |
 Robert Adler | Cast | Actor | 1 | |
 Robert Bray | Cast | Actor | Hal Kester | 1 |
 Robert Conrad | Cast | Actor | Martin Purcell | 1 |
 Robert Emhardt | Cast | Actor | Owen Judd | 1 |
 Robert Foulk | Cast | Actor | O'Garrick | 1 |
 Robert Rothwell | Cast | Actor | Joe Shivers | 1 |
 Russ Conway | Cast | Actor | Henry Hart | 1 |
 Russell Johnson | Cast | Actor | 1 | |
 Stacy Harris | Cast | Actor | Cliff Carteret | 1 |
 Tom Fadden | Cast | Actor | 1 | |
 Van Williams | Cast | Actor | Joey Baker | 1 |
 Warren Vanders | Cast | Actor | 1 | |
 Dorothy Konrad | Cast | Actress | Emma Bryant | 1 |
 Paul Smith | Cast | Actor | Grover Clippett | 1 |
 Hanna Landy | Cast | Actress | Kate | 1 |
Raymond Mayo | Cast | Actor | 1 | |
| Person | Type | Job | Role(s) | Episodes |
