Marian Ellen Ross (born October 25, 1928) better known as Marion Ross, she is an American actress best known for her role as Marion Cunningham in the ABC television sitcom, Happy Days from 1976 to 1984. She voices Grandma SquarePants on SpongeBob SquarePants and also voiced Rebecca the Elephant Queen in The Wild Thornberrys episode, "Forget Me Not", She will also be the voice of Granny Rat in Sky Rat.

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