Series Creator and Executive Producer: Leslie Stevens (Daystar Productions)
Uncredited Assistant to Mr. Stevens: Lloyd Haines
Mr. Stevens' Secretaries: Mona Skager and Bonnie Bloom
 
Producer: Joseph Stefano (Villa di Stefano)
Assistant to the Producer: Tom Selden
Associate Producer: Leon Chooluck
Production Coordinator: Elaine Michea
Production Manager: Lindsley Parsons, Jr.
 
Writers:
Bill S. Ballinger
Allan Balter (VP Publicity)
William Bast
Orin Borsten
Oliver Crawford
Lin Dane
Meyer Dolinsky
David Duncan
Anthony Lawrence
Stephen Lord
Robert Mintz
Louis Morheim
Dean Riesner
Jerome Ross
Donald S. Sanford
Ellis St. Joseph
Joseph Stefano
Leslie Stevens
Robert Towne
Stories and Additional materials from:
Bill S. Ballinger
Charles Beaumont
Louis Charbonneau
Louis Morheim
Sonya Roberts
Ellis St. Joseph
Robert Specht
Joseph Stefano
Leslie Stevens
Robert Towne
Arthur Leo Zagat
Story Consultant:
Louis Morheim (Associate Producer)
Uncredited: Leslie Stevens
Script Supervisor: Hope McLaughlin
 
Directors:
Laslo Benedek
Abner Biberman
John Brahm
Alan Crosland, Jr.
John Erman (Production Associate)
Robert Florey
James Goldstone
Byron Haskin
Leonard J. Horn
Gerd Oswald
Paul Stanley
Leslie Stevens
Assistant Directors:
Claude Binyon, Jr.
Robert H. Justman (Production Manager)
Lee H.
Katzin
Phil Rawlins
Wilson Shyer
 
Directors of Photography:
Conrad L. Hall
John M. Nickolaus, Jr.
Kenneth Peach
Uncredited: William A. Fraker
Chief Set Electrician: Lloyd L. Garnell
Key Grip: Henry Maak
 
Art Director: Jack Poplin
Set Decorator: Chester Bayhi
Properties: Richard M. Rubin
Uncredited Set Designer: Tracy R. Bousman
Costumers:
Forrest T. Butler (men)
Sabine Manela (women)
 
Supervising Film Editor: Richard K. Brockway
Uncredited: Leslie Stevens and Joseph Stefano
Film Editors:
Fred Baretta
Tony Di Marco
 
Composers:
Dominic Frontiere (Production Executive)
Robert Van Eps
Music Supervisor:
John Elizalde
Uncredited: John Caper, Jr.
Sound Mixer: Jay Ashworth
Sound Effects Editor: Arthur J. Cornall
Music Coordinator: Roger Farris
 
Optical Effects:
Consolidated Film Industries, Inc.
Projects Unlimited, Inc.
(Jim Danforth - Paul LeBaron - Ralph Rodine)
M. B. Paul
Ray Mercer And Company
Butler-Glouner, Inc.
Uncredited: Byron Haskin
Special Effects:
Harry Redmond, Jr.
Si Simonson
Makeup Supervisor: Fred B. Phillips
Uncredited: John Chambers
 
Casting Consultants:
Meryl Abeles
John Erman
Narrators, Extras and Stunts:
Frank Delfino
William O. Douglas, Jr.
Bill Hart
Robert Johnson
Robert H. Justman
Hugh Langtry
Vic Perrin ("The Control Voice")
Janos Prohaska
Dean Smith
Leslie Stevens
Ben Wright
Producer: Ben Brady
Assistant to the Producer: B. Ritchie Payne
Associate Producer: Sam White
Production Coordinator: Elaine Michea
Production Manager: Claude Binyon, Jr.
 
Writers:
Francis Cockrell
Robert C. Dennis
Harlan Ellison
Milton Krims
Seeleg Lester
John Mantley
Ib Melchior
Sam Neuman
Sam Roeca
Jerry Sohl
Stories and Additional materials from:
Edwin Abbott
Ed Adamson
Eando Binder
Ben Brady
Louis Charbonneau
William Cox
Sydney Ellis
Harlan Ellison
Byron Haskin
Richard Landau
Seeleg Lester
Stephen Lord
Sam Neuman
Sam Roeca
Clifford Simak
Jerry Sohl
Dan Ullman
Story Consultant:
Seeleg Lester (Associate Producer)
Script Supervisor: Hope McLaughlin
 
Directors:
Laslo Benedek
Leon Benson
Felix Feist
James Goldstone
Charles Haas
Byron Haskin
Gerd Oswald
Paul Stanley
Assistant Directors:
Robert Justman
Rusty Meek
Gregg Peters
William P. Owens
 
Directors of Photography:
Fred J. Koenekamp
Kenneth Peach
Chief Set Electrician: Lloyd L. Garnell
Key Grip: Henry Maak
 
Art Director: Jack Poplin
Set Decorator: Chester Bayhi
Properties: Richard M. Rubin
Uncredited Set Designer: Tracy R. Bousman
Costumers:
Forrest T. Butler (men)
Sabine Manela (women)
 
Supervising Film Editor: Richard K. Brockway
Film Editors:
Fred Baretta
Tony Di Marco
 
Composer: Harry Lubin
Music Supervisor: John Caper, Jr.
Sound Mixer: Jay Ashworth
Sound Effects Editor: Arthur J. Cornall
 
Optical Effects:
Projects Unlimited, Inc.
Van der Veer Photo Co.
Special Effects: Pat Dinga
Makeup Supervisor: Fred B. Phillips
 
Casting Consultants:
Meryl Abeles
Harvey Clarmont
Narrators, Extras and Stunts:
John Caper, Jr.
Robert Culp
Bill Hart
Robert Johnson
Mike Lane
Hugh Langtry
Tim O'Connor
Vic Perrin ("The Control Voice")
Janos Prohaska
Dean Smith
Ben Wright
The Men from Villa di Stefano
From left to right: Tom Selden, Joseph Stefano, Louis Morheim