Trog: Reparto
Joan Crawford
Dr. Brockton
Michael Gough
Sam Murdock
Bernard Kay
Inspector Greenham
Kim Braden
Anne Brockton
David Griffin
Malcolm Travers
John Hamill
Cliff
Thorley Walters
Magistrate
Jack May
Dr. Selbourne
Geoffrey Case
Bill
Robert Hutton
Dr. Richard Warren
Simon Lack
Colonel Vickers
David Warbeck
Alan Davis
Chloe Franks
Little Girl
Maurice Good
Reporter
Joe Cornelius
Trog
John Baker
Anaesthetist
Jack Carter
Police Officer (uncredited)