The "Leo the Lizard" costume that Hannibal wears is actually a Sleestak costume from the series "Land Of The Lost."
George Olson's real name is George Banner. Christine De Lisle, who played Ginger, the waitress at the beginning, also starred in 'The Incredible Hulk' episode 'Equinox', where, of course, the main character, who also has to hide this fact, is also called 'Banner'.