

Billy Frank is an ordinary kid, until his family inherits an old castle and Billy learns he's a distant relative of the infamous Dr. Frankenstein. Billy's folks decide to visit their family estate, and Billy soon discovers they're not alone.
Jordan Lamoureux
Billy Frankenstein

Mary Elizabeth McGlynn
Sandy

Daran Norris
George

Peter Spellos
Bloodstone
Brian Carrillo
Frankenstein
Kristin Jadrnicek
Thelma

Vernon Wells
Otto

Griffin Drew
Fraulein

Tommy Kirk
Blind Monk
Kimberly A. Ray
Tour Guide
John Maynard
Froog
Robert Burke
Sheldon
Ernest Hardin Jr.
Steve
Rick Cadelli
Preston Strong
William Kuehn
Chauffeur
Mark Thomas McGee
Brain Vendor (as Mark McGee)
Andrew D'Amico
Rat Vendor
Devan Scott
Doll Vendor
Kimberly A. Ray
Tour Guide (as Kim Ray)
Vanessa Greyshock
Young Tourist Girl (as Vanessa A. Koman)