Police Lt. Howard Finucane / Lt. Howard Finucane / Det. Lt. Howard Finucane (78 episodes, 1959-1961)
Ben Andrews / Ben Adnrews (78 episodes, 1959-1961)
Det. Dan Kramer (16 episodes, 1960)
Det. George Peters (13 episodes, 1959)
Det. Paul Kirk (13 episodes, 1960)
Det. Carl Spencer (13 episodes, 1961)
Det. Bruce Hanna (11 episodes, 1959-1960)
Det. Phil Burns (8 episodes, 1960-1961)
Dr. Billy Shaw / Billy Shaw (5 episodes, 1959-1961)
Det. Phil Burns (4 episodes, 1960-1961)
Jerry Daniels / Slaydon (2 episodes, 1960-1961)
Charlie Hendricks / Lab Man (2 episodes, 1959-1961)
Jane / Mona Thompson (2 episodes, 1960-1961)
Ruth / Ruth Bain (2 episodes, 1961)
Vernon Seif (2 episodes, 1959-1960)
Catlin (2 episodes, 1961)
Hazel Douglas (1 episode, 1959)
Connie Martell (1 episode, 1959)
Betty Ann Logan (1 episode, 1959)
Carl Spencer (1 episode, 1959)
Mrs. Clark (1 episode, 1960)
Matt (1 episode, 1960)
Raymond Marriner (1 episode, 1960)
Mrs. Clyde Baxter (1 episode, 1960)
Joseph Odmak (1 episode, 1960)
Rolfe (1 episode, 1960)
Charlie Wilson (1 episode, 1960)
John Faber (1 episode, 1960)
Kelsey (1 episode, 1960)
Det. Bert Earnst (1 episode, 1960)
Fletcher Stevens (1 episode, 1961)
Otto Klingman (1 episode, 1961)
John Pike (1 episode, 1961)
Ben Munsey (1 episode, 1961)
Ann Gurney (1 episode, 1961)
Edward Sherman (1 episode, 1961)
Sam Bain (1 episode, 1961)
Frank Nicholls (1 episode, 1959)
Mrs. Hodges (1 episode, 1959)
Fisher (1 episode, 1959)
Dance Hall Girl (1 episode, 1959)
Verne Hewlett (1 episode, 1959)
Johnny Rayne (1 episode, 1959)
Gladys Grant (1 episode, 1960)
Lee (1 episode, 1960)
Maggie (1 episode, 1960)
Stuart Graham (1 episode, 1960)
George Odmak (1 episode, 1960)
Charlotte Fielding (1 episode, 1960)
Jordan (1 episode, 1960)
Det. Fred Mudd (1 episode, 1960)
Harry Lantz (1 episode, 1960)
Henry Diesen (1 episode, 1960)
Lou Michaelson (1 episode, 1960)
Sandy Kilmer (1 episode, 1960)
Dr. Coleman (1 episode, 1961)
John Gurney (1 episode, 1961)
Harriet Hempstead (1 episode, 1961)
Peter Thorne (1 episode, 1961)
Edie Macklin (1 episode, 1961)
Mary Noble (1 episode, 1961)
Dance Hall Guy (1 episode, 1959)
Mrs. Marshall (1 episode, 1959)
C. C. Crane (1 episode, 1959)
Dr. Elkey (1 episode, 1959)
Mrs. Struthers (1 episode, 1959)
Mrs. Joplin (1 episode, 1959)
Leona Rogers (1 episode, 1960)
Joey Welch (1 episode, 1960)
Ben Martin (1 episode, 1960)
Sydney Harrison (1 episode, 1960)
Grant Sellers (1 episode, 1960)
Maxie (1 episode, 1960)
Capt. Stark (1 episode, 1960)
Roy Laslo (1 episode, 1960)
Janet Dorsey (1 episode, 1960)
Mickey (1 episode, 1961)
Harry Lebo (1 episode, 1961)
Jack Trill (1 episode, 1961)
Jackie Pell (1 episode, 1961)
John Bukich (1 episode, 1961)
Posen (1 episode, 1961)
Jim Knox (1 episode, 1961)
Phil Jacobsen (1 episode, 1959)
Yost (1 episode, 1959)
Ken Marshall (1 episode, 1959)
Plait (1 episode, 1959)
Chester Beardsly (1 episode, 1959)
Matt Williams (1 episode, 1960)
Henry Blake (1 episode, 1960)
Mrs. Jones (1 episode, 1960)
Ella Johnson (1 episode, 1960)
Mrs. Michaelson (1 episode, 1960)
Rev. Kimura (1 episode, 1960)
Mr. Hollister (1 episode, 1960)
Dr. Ramsey (1 episode, 1960)
Jean (1 episode, 1960)
Mr. Mandell (1 episode, 1960)
Alvin Connors (1 episode, 1960)
Fire Chief (1 episode, 1961)
Mrs. Evans (1 episode, 1961)
Frank Nelson (1 episode, 1961)
Operator (1 episode, 1961)
Danny King (1 episode, 1961)
Jackson (1 episode, 1961)
Doctor (1 episode, 1961)
Mrs. Rayne (1 episode, 1959)
Alan Richards (1 episode, 1959)
Earl (1 episode, 1960)
Mrs. Matilda Seif (1 episode, 1960)
Horace Phyffe (1 episode, 1960)
Leroy Burkey (1 episode, 1961)
Stan Kolcic (1 episode, 1961)
Officer (1 episode, 1961)
Billy Clay (1 episode, 1961)
Mr. Jacobsen (1 episode, 1959)
Provost Marshal (1 episode, 1959)
Nurse Agnes (1 episode, 1960)
Ballistics Expert (1 episode, 1959)
Walters (1 episode, 1959)
(1 episode, 1959)
Jeannette Woodson (1 episode, 1959)
Mrs. Niblo (1 episode, 1959)
Woodson (1 episode, 1959)
Charles Comerford (1 episode, 1959)
Interrogation Officer (1 episode, 1959)
Dorothy (1 episode, 1959)
Louise (1 episode, 1960)
Willie (1 episode, 1960)
Mrs. Oxford (1 episode, 1960)
Ellen (1 episode, 1960)
Kelley (1 episode, 1960)
Freddie (1 episode, 1960)
(1 episode, 1960)
Kinkaid (1 episode, 1960)
Liska (1 episode, 1960)
Cass (1 episode, 1960)
Compton (1 episode, 1960)
Mrs. Ross (1 episode, 1960)
Wanda (1 episode, 1960)
Phillips (1 episode, 1960)
Eddie King (1 episode, 1960)
Craig (1 episode, 1960)
Langley (1 episode, 1960)
(1 episode, 1961)
Mrs. Bell (1 episode, 1961)
Bain (1 episode, 1961)
Hatcheck Girl (uncredited) (1 episode, 1960)