sentences:  Besides Frankenstein's Monster (sometimes referred to as "Fang") and the Monster's more intelligent mate (voiced by Phyllis Diller) who live in the isle's castle with Boris, the invites also include Count Dracula, the Mummy, Quasimodo (referred to as "The Hunchback of Notre-Dame"), the Werewolf, The Invisible Man, Dr. Jekyll and Mr. Hyde, and the Creature from the Black Lagoon (referred to as just "The Creature").The Baron's beautiful assistant Francesca (voiced by Gale Garnett) enters the lab to confirm that all invitations have been delivered and inquires about one of the addressees named Felix Flanken (voiced by Allen Swift impersonating James Stewart).Frankenstein explains that Flanken is his nephew and successor in the monster business.