Marty Monsterberg

Marty Monsterberg is Grover's cousin. He first appeared in the 2017 Sesame Street in Communities digital storybook Monster Moments, where he and Grover look through a few photo albums capturing milestones and moments from his first five years.
==Animated appearances==
* Furry and Blue Family Celebration: Marty and other members of Grover's family have a virtual meal together. 
* Take a Break, Take a Breath, Try Again: Grover helps Marty calm down before attempting to tie his shoes. 
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Category:Sesame Street Characters
Category:Sesame Street Monsters
Category:Illustrated Characters
Category:Animated Characters