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Grandpa Frump is the husband of Granny Frump.

He and Granny Frump are dead. Morticia often uses a séance to speak to Grandpa Frump and Granny Frump. The two of them give advice to Morticia on how to handle Wednesday when she starts to distance herself from Morticia. When Grandpa Frump tries to remember when he died, Granny Frump stated that it was twenty years ago.


The feature film:


He was voiced by Martin Short.