This is the only episode of the series written by a woman. Adele T. Strassfield was the secretary of William Froug, the producer of the second half of the final season of The Twilight Zone (1959). According to Froug, they worked out "Caesar and Me" together.
The ventriloquist's dummy is a reuse of the one created for The Dummy (1962). It was modelled on George Murdock, one of that episode's guest stars.
Jackie Cooper's name previously appeared on a poster for the film O'Shaughnessy's Boy (1935), in which he starred, in The Incredible World of Horace Ford (1963).