Darren McGavin
Carl Kolchak (20 eps)
Simon Oakland
Tony Vincenzo (20 eps)
Jack Grinnage
Ron Updyke (20 eps)
John Fiedler
Gordon Spangler (3 eps)
Carol Ann Susi
Monique Marmelstein (3 eps)
Richard Kiel
The Monster (2 eps)
Ramon Bieri
Captain Joe Baker (2 eps)
Keenan Wynn
Capt. Joe 'Mad Dog' Siska (2 eps)
Ned Glass
Apartment Superintendent (2 eps)
Ruth McDevitt
Edith Cowels (2 eps)
Dennis McCarthy
Ballistics Man (2 eps)
Maureen Arthur
Woman Speaker (1 eps)
John Alvin
Dr. Carrie (1 eps)
Milt Kamen
Gingrich (1 eps)
Henry Jones
Captain Julian Wells (1 eps)
Lenore Kasdorf
Girl (1 eps)
George Savalas
Kaz (as Demosthenes) (1 eps)
Antonio Fargas
Sweetstick Weldon (1 eps)
Fritz Feld
Waiter (1 eps)
Severn Darden
Dr. Aaron Pollack (1 eps)
Michael Strong
Walter Green (1 eps)
Jimmy Hawkins
Jay Remy (1 eps)
Philip Carey
Sgt. Mayer (1 eps)
Val Bisoglio
Victor Friese (1 eps)
Dick Van Patten
Alfred Brindle (1 eps)
Randy Boone
Gene the Fiddler (1 eps)
Elaine Giftos
Nurse Janis Eisen (1 eps)
Kathleen Nolan
Faye Kruger (1 eps)
James Griffith
Schwartz (1 eps)
Bob Hastings
Hallem (1 eps)
Joshua Shelley
George (1 eps)
Charles Aidman
Police Captain Leo Winwood (1 eps)
Len Lesser
Crowley (1 eps)
Elisabeth Brooks
Natalie - Lab Assistant (1 eps)
Joyce Jillson
Diana Lanier (1 eps)
Suzanne Charny
Catherine Rawlins (1 eps)
David Doyle
Cardinale (1 eps)
Joseph Sirola
Benjamin Sposato (1 eps)
Phil Leeds
Howard Gough (1 eps)
John Mitchum
Janitor (1 eps)
Victor Jory
Charles Rolling Thunder (1 eps)
Madlyn Rhue
Maria (1 eps)
J. Pat O'Malley
Caretaker (1 eps)
Tom Drake
Don Kibbey (1 eps)
Marvin Kaplan
Delgado (1 eps)
Army Archerd
Man (1 eps)
Scatman Crothers
Uncle Filemon (1 eps)
Mary Wickes
Dr. Bess Winestock (1 eps)
Virginia Gregg
Dr. Hollenbeck (1 eps)
William Smith
Jim Elkhorn (1 eps)
John Doucette
Deputy Sample (1 eps)
Alice Ghostley
Dr. Agnes Temple (1 eps)
Paulene Myers
Marie Juliette 'Mamalois' Edmonds (1 eps)
James Gregory
Captain Quill (1 eps)
Michael Fox
Frank Wesley (1 eps)
Jan Murray
Ichabod Grace (1 eps)
Rudy Challenger
Stanley Wedemyer (1 eps)
Robert Yuro
Detective Webster (1 eps)
Larry Storch
Swede (1 eps)
Phil Silvers
Harry Starman (1 eps)
Murray Matheson
Mr. Lane-Mariot (1 eps)
Creed Bratton
Man Entering Lab (1 eps)
Beatrice Colen
Jane Plumm (1 eps)
Richard Gautier
Mel Tarter (1 eps)
Ken Lynch
Capt. Warren (1 eps)
Mews Small
Masseuse (1 eps)
Don Mantooth
Policeman (1 eps)
Rob Berger
Mail Boy (1 eps)
Roberta Collins
Det. Cortazzo (1 eps)
Clint Young
Driver (1 eps)
Mickey Gilbert
The Ripper (1 eps)
William Daniels
Police Lt. Jack Matteo (1 eps)
Anne Whitfield
Call Girl (1 eps)
Noel De Souza
Chandra (1 eps)
Nita Talbot
Paula Griffin (1 eps)
Eric Braeden
Bernhardt Stieglitz (1 eps)
Barry Cahill
Dr. Alan Ross (1 eps)
Lewis Charles
George Levitt (1 eps)
Fred Beir
Ryder Bond (1 eps)
Virginia Vincent
Mrs. Markoff (1 eps)
Alice Backes
Dr. Shropell (1 eps)
Carol Veazie
Mrs. Sherman (1 eps)
Patricia Estrin
Felicia Porter (1 eps)
Tom Skerritt
Robert W. Palmer (1 eps)
Julie Gregg
Susan Driscoll (1 eps)
Ellen Weston
Lorraine Palmer (1 eps)
John Myhers
Senator James Talbot (1 eps)
Jeanne Cooper
Dr. Kline (1 eps)
William Mims
Officer Hale (1 eps)
Robert DoQui
Park Policeman (1 eps)
Dick Patterson
Stephan Wald (1 eps)
Stanley Adams
Bartender (1 eps)
Bill Welsh
T.V. Announcer (1 eps)
David Lewis
Auctioneer (1 eps)
Johnny Silver
Pepe LaRue - Morris Shapiro (1 eps)
Brian Avery
Record Producer (1 eps)
Maurice Marsac
Henri Villon (1 eps)
Robert Cornthwaite
Dr. Hartfield (1 eps)