Universal coaxed special effects designer Ken Strickfaden from retirement to recreate the lighting effects from the original Frankenstein pictures.
Dr. Edward Dudley, here played by Dom DeLuise, was played by Paul Lynde three times during the first season.
Grandpa uses many Tesla coils in his dungeon. This apparatus is simple, and its currents can pass through the human body without causing electric shock. The crackling, wiggling sparks emanating from the electrode of a Tesla coil became an iconic prop in classic movies that had a "mad scientist's" lab.