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)
Matt (1 episode, 1960)
Mrs. Clark (1 episode, 1960)
Mrs. Clyde Baxter (1 episode, 1960)
Rolfe (1 episode, 1960)
Charlie Wilson (1 episode, 1960)
Joseph Odmak (1 episode, 1960)
Raymond Marriner (1 episode, 1960)
Kelsey (1 episode, 1960)
John Faber (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)
Edward Sherman (1 episode, 1961)
Ann Gurney (1 episode, 1961)
Sam Bain (1 episode, 1961)
Frank Nicholls (1 episode, 1959)
Mrs. Hodges (1 episode, 1959)
Fisher (1 episode, 1959)
Johnny Rayne (1 episode, 1959)
Verne Hewlett (1 episode, 1959)
Dance Hall Girl (1 episode, 1959)
Gladys Grant (1 episode, 1960)
Lee (1 episode, 1960)
Maggie (1 episode, 1960)
Charlotte Fielding (1 episode, 1960)
George Odmak (1 episode, 1960)
Stuart Graham (1 episode, 1960)
Jordan (1 episode, 1960)
Henry Diesen (1 episode, 1960)
Det. Fred Mudd (1 episode, 1960)
Harry Lantz (1 episode, 1960)
Lou Michaelson (1 episode, 1960)
Sandy Kilmer (1 episode, 1960)
John Gurney (1 episode, 1961)
Dr. Coleman (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)
Dr. Elkey (1 episode, 1959)
C. C. Crane (1 episode, 1959)
Mrs. Struthers (1 episode, 1959)
Mrs. Joplin (1 episode, 1959)
Joey Welch (1 episode, 1960)
Sydney Harrison (1 episode, 1960)
Leona Rogers (1 episode, 1960)
Ben Martin (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)
Jack Trill (1 episode, 1961)
Mickey (1 episode, 1961)
Harry Lebo (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)
Mr. Mandell (1 episode, 1960)
Mr. Hollister (1 episode, 1960)
Dr. Ramsey (1 episode, 1960)
Jean (1 episode, 1960)
Rev. Kimura (1 episode, 1960)
Alvin Connors (1 episode, 1960)
Fire Chief (1 episode, 1961)
Frank Nelson (1 episode, 1961)
Mrs. Evans (1 episode, 1961)
Jackson (1 episode, 1961)
Operator (1 episode, 1961)
Danny King (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)
Mrs. Niblo (1 episode, 1959)
Jeannette Woodson (1 episode, 1959)
Woodson (1 episode, 1959)
Interrogation Officer (1 episode, 1959)
Dorothy (1 episode, 1959)
Charles Comerford (1 episode, 1959)
Louise (1 episode, 1960)
Mrs. Oxford (1 episode, 1960)
Willie (1 episode, 1960)
Ellen (1 episode, 1960)
Kelley (1 episode, 1960)
Kinkaid (1 episode, 1960)
(1 episode, 1960)
Mrs. Ross (1 episode, 1960)
Cass (1 episode, 1960)
Compton (1 episode, 1960)
Phillips (1 episode, 1960)
Liska (1 episode, 1960)
Freddie (1 episode, 1960)
Wanda (1 episode, 1960)
Eddie King (1 episode, 1960)
Langley (1 episode, 1960)
Craig (1 episode, 1960)
(1 episode, 1961)
Mrs. Bell (1 episode, 1961)
Bain (1 episode, 1961)
Hatcheck Girl (uncredited) (1 episode, 1960)