The Munsters (1964)

The family at 1313 Mockingbird lane is a little... different. Dad Herman looks like Frankenstein's monster; mom Lily and her dad, Grandpa, are vampires; and son Eddie is a werewolf. Poor Marilyn, their niece, is the odd one out - she's just a normal blond girl. (The family doesn't like to call attention to her unfortunate looks.) As far as the family is concerned, they're perfectly normal - and they don't quite get why their neighbors would think any differently.