Caesar Romero and Richard Bakalyan both appear in the Disney films, "The Computer Wore Tennis Shoes", "Now You See Him, Now You Don't" and "The Strongest Man in the World"
During the first part of the episode everyone said The little green man was three feet tall. The actor that played the part was five feet seven inches tall.
Actor Marc Cavell was originally cast as the Martian, Verdigris, but he was ultimately replaced by Richard Bakalyan.