 | Reed Hadley | ... | Capt. John Braddock / ... (98 episodes, 1951-1953) |

| Hugh Beaumont | ... | Narrator (prologue) / ... (33 episodes, 1952-1953) |

| Robert Bray | ... | Desk Sergeant in Prologue / ... (4 episodes, 1951-1953) |
 | Pierre Watkin | ... | Dr. Trevillon / ... (3 episodes, 1951-1953) |
 | Fay Roope | ... | Albert - Husband / ... (3 episodes, 1951-1953) |
 | Russell Hicks | ... | Jeremiah J. Gates / ... (3 episodes, 1951-1952) |
 | Gloria Saunders | ... | Karen Spencer (3 episodes, 1951-1953) |

| Douglass Dumbrille | ... | George Vermillion (3 episodes, 1951-1953) |
 | Robert Rockwell | ... | Don Kerby / ... (2 episodes, 1951-1952) |
 | June Wurster | ... | Wanda Hurley (2 episodes, 1952-1953) |
 | James Flavin | ... | Johnson / ... (2 episodes, 1951-1952) |
 | Harry Tyler | ... | Henry Simpson / ... (2 episodes, 1952-1953) |
 | John Eldredge | ... | George Collins / ... (2 episodes, 1951) |
 | Henry Kulky | ... | Gus / ... (2 episodes, 1952-1953) |
 | Willie Best | ... | Cleaning Man / ... (2 episodes, 1951-1952) |
 | Paul Brinegar | ... | Janitor Dorset / ... (2 episodes, 1952-1953) |
 | Bobby Watson | ... | Mr. Gibson / ... (2 episodes, 1952) |
 | George Pembroke | ... | Bookkeeper / ... (2 episodes, 1952-1953) |
 | William Boyett | ... | Joe Kane / ... (2 episodes, 1952) |
 | Chris Drake | ... | Chuck Martin (2 episodes, 1951-1953) |
 | Fred Essler | ... | Karl Muller (2 episodes, 1951-1952) |
 | James Bell | ... | Pete Johnson (2 episodes, 1952-1953) |

| Karen Sharpe | ... | Frances Dillon (2 episodes, 1952-1953) |
 | Percy Helton | ... | Dad Miller (2 episodes, 1951-1953) |
 | Edit Angold | ... | Freida / ... (2 episodes, 1951-1952) |
 | Byron Foulger | ... | Anderson (2 episodes, 1951-1952) |
 | Dorothy Patrick | ... | Evie Blake (2 episodes, 1952-1953) |
 | Morgan Farley | ... | Martin Kelso (2 episodes, 1951-1953) |
 | Stanley Andrews | ... | Howard Paulsen (2 episodes, 1951-1952) |

| Anthony Caruso | ... | Antoine (2 episodes, 1952-1953) |
 | Joe Sawyer | ... | Sgt. Gunner McGurn (2 episodes, 1952-1953) |
 | Keith Richards | ... | Fred Brady / ... (2 episodes, 1951-1953) |
 | Joan Blair | ... | Amy Cooper (2 episodes, 1951-1952) |
 | Wade Crosby | ... | Sam Kelsey (2 episodes, 1951-1952) |
 | Allen Mathews | ... | Jurgins (2 episodes, 1951-1952) |
 | John Phillips | ... | Detective Seidel / ... (2 episodes, 1951-1952) |
 | Lorin Raker | ... | Doctor / ... (2 episodes, 1951-1952) |
 | Thomas Browne Henry | ... | Bob MacKay / ... (2 episodes, 1952-1953) |
 | Walter Woolf King | ... | Tony (2 episodes, 1951-1952) |

| Frank Wilcox | ... | Howard Langley (2 episodes, 1951) |
 | Emlen Davies | ... | Cashier / ... (2 episodes, 1952) |
 | Douglas Evans | ... | Race Caller (2 episodes, 1952) |
 | Louis Lettieri | ... | Boy / ... (2 episodes, 1952) |
 | Ivan Parry | ... | Sheriff Martin (2 episodes, 1951-1953) |
 | Paul Keast | ... | Mr. Hastings (2 episodes, 1952) |

| Robert Easton | ... | Joe - Desk Clerk / ... (2 episodes, 1951-1953) |
 | Dick Elliott | ... | Fred Simpson / ... (2 episodes, 1951-1952) |
 | Richard Benedict | | (2 episodes, 1951-1953) |
 | Charles Meredith | | (2 episodes, 1951-1953) |
 | Johnny Downs | | (2 episodes, 1951-1952) |
 | Forrest Taylor | | (2 episodes, 1951) |
 | Joan Vohs | | (2 episodes, 1951) |
 | Suzanne Alexander | ... | Lillian Lester (2 episodes, 1952-1953) |
 | Hillary Brooke | ... | Julia Bentley (2 episodes, 1952-1953) |
 | Mimi Gibson | ... | Sandy Lester (2 episodes, 1952-1953) |
 | John Hubbard | ... | Tom Grant (2 episodes, 1952-1953) |
 | Frances Rafferty | | (2 episodes, 1952-1953) |
 | Grandon Rhodes | | (2 episodes, 1952-1953) |
 | Veda Ann Borg | ... | Myrna (2 episodes, 1952) |
 | King Donovan | ... | Swifty (2 episodes, 1952) |
 | James Warren | | (2 episodes, 1953) |