PERFORMER Joey Mazzarino
DEBUT 1991

Merry Monster is a Sesame Street monster who first appeared in Episode 2854, then became a recurring character from season 23 through season 26, making only minor appearances since.

Despite her small size and meek voice, Merry is known for being loud and sometimes obnoxious. Her roar is louder than that of Chicago the Lion.

She sang "That's the Letter O" with Queen Latifah and Prairie Dawn in season 24.


  • Episode 2670 features another young, female monster named Merry. The two share the same meek, outward nature, while possessing a monstrous inner strength.

Book appearances