Mr. & Mrs. J. Evil Scientist are a family of fictional characters inspired by The Addams Family cartoons that appeared in The New Yorker. They appeared on the Snagglepuss and Snooper and Blabber animated television series and appeared in Flintstones comics before starring in their own 4 issue comic book released every year for Halloween.
Later Hanna Barbera versions of the horror family included The Gruesomes (The Flintstones), The Creeplies (Laff-A-Lympics) and The Frankenstones (Flintstone Frolics). Hanna Barbera also made 2 Addams Family cartoon series in 1973, 1992.