Grandpa Grouch

 Grandpa Grouch  is Oscar the Grouch 's grandfather on Sesame Street. Grandpa has white hair & wears glasses.

In Season 15, he was a recycled version of an older Oscar  puppet (a version that had moving eyes in addition to his eyebrows) but in Season 18 he was made from a background Grouch. Whether Grandpa Grouch is Oscar 's maternal or paternal grandfather or wed to  Granny Grouch  is unclear.

TV/Movies/Specials

 * Sesame Street
 * Season 15 (Episode unknown)
 * Episode 2313