Mrs. Creepley is the mother of the Creepleys Family, who appeared in the Laff-A-Lympics.
In 1977, a family similar to the Gruesomes were introduced as part of the Laff-A-Lympics segment on Scooby's All-Star Laff-A-Lympics. The Creepleys consist of Mr. Creepley (voiced by Don Messick), Mrs. Creepley (voiced by Laurel Page), and their son Junior Creepley (also voiced by Messick). They are members of the Really Rottens team.
They appeared in the 1978 Laff-A-Lympics comic book series by Marvel Comics.
The Creepleys are referenced in Scooby-Doo! Team-Up #7.