The full monster make-up was actually being worn by a man, Harry Wilson. Because of this, makeup creator Harry Thomas did not realize that the creature was supposed to be female. All he could do at the last minute was apply lipstick to the creature.
Make-up artist Harry Thomas has said that when he was given the assignment to make a mask for the "monster", he was not told that the monster was to be a female, so he made the mask to be a male. By the time he was notified that the monster was to be a female, the mask had already been done, and there was no money in the make-up budget left to do another one. Thomas claims that director Richard E. Cunha's alleged statement giving Paul Stanhope credit for the make-up is false, as Thomas was the film's only make-up man. Thomas also discredits Cunha's claim that he wanted Jack P. Pierce to do the make-up, as Pierce was notorious for taking a long time to apply his creations. Thomas claims the gender problem of the monster would never have occurred if the filmmakers had bothered to give him a $2 copy of the script.