Uncle Smarmy

Uncle Smarmy is the uncle of Oscar the Grouch. He is also the uncle of Ernest  &  Otto the Grouch  & their sister  Bunny. Ebenezer Scrooge reminds Oscar  of him in " Oscar 's Christ mas Carol (A Dickens of a Story)", from A Sesame Street Christ mas. Whether he is the brother of Oscar 's  mother  or  father  is unknown.

Books

 * A Sesame Street Christ mas (1982) (mentioned)