Director/a
William Cameron Menzies
DIRECTOR/A
Norman Z. McLeod
William D. Russell
Reparto (por orden de créditos)
Ronald Colman
Dr. William Todhunter Hall
Benita Hume
Victoria Hall
Ray Collins
Professor Merriwether
Herb Butterfield
Clarence Wellman
Mary Wickes
Alice the Housekeeper
Arthur Q. Bryan
Professor Warren
Herb Vigran
ACTOR
Dorothy Bruce
Paul Smith
Francis Pierlot
Prof. Lucius Royce
Jay Novello
Eddie Ryder
James Todd
Howard McNear
Rex Evans
Fred Grimes
Verna Felton
Alan Reed
Prof. Heaslip
Olan Soule
Addison Yates
Jeanne Bates
Sarah Selby
Mrs. Wellman
Joe Sawyer
John Hamilton
Connie Marshall
Bill Baldwin
Lee Millar
Charlott Knight
Felicia Yates
Charles Evans
Cecil Weston
Joanne Davis
Gloria Gordon
John Smith
Lenny Sherman
Karen Steele
Martin Milner
Ralph Moody
Whit Bissell
Maypole
Sig Ruman
Dr. Spatzen
Bill Thompson
Jeff York
John Lupton
Student
Willard Waterman
John Merriwether
Byron Foulger
Douglas Dick
Shirley O'Hara
Moroni olsen
James Flavin
Frank Jenks
Natalie Norwick
Joseph Hamilton
Tom Powers
Robert Nichols
Grandon Rhodes
Charles Smith
Tom Irish
Larry Carr
Rolfe Sedan
Erville Alderson
Fran Bennett
Nelson Leigh
Jack Diamond
Henry Blair
Tamar Cooper
Thom Conroy
Gladys Holland
Helen Spring
Melinda Markey
Jimmy Weldon
Molly McCart
Carol Brannon
Barbara Jean Wong
Bill White Jr.
Clark Burroughs
Connie Hilton
John Carlyle
Dick Kaiser
Bill Tracy
Gene Puerling
Julie Fraser Light
Jim Millican
John Hoyt
Ernest Truex
Harry Harvey Jr.
Leon Tyler
Alan Harris
Bob Crosson