Baby Monster

"Baby Monster" is a descriptive name used as both official and unofficial designations for various Muppet characters.

Caroll Spinney

 * According to Caroll Spinney, he played a character he refers to as "Baby Monster" in a series of "monster family" skits in the early seasons of Sesame Street. In a repeated anecdote, Spinney recalls the character as being the same puppet that would become Elmo.

Cookie Monster

 * Cookie Monster called his cousin "Baby Monster" in one Sesame Street sketch.
 * In the 1979 book Cookie Monster's Storybook, Cookie Monster's niece is also called Baby Monster.
 * The name runs in the family, as in n the 1994 book Me Cookie!, it's revealed that before Cookie Monster got his name, he was called Baby Monster.

Fred's son

 * An unnamed small purple monster debuted on ''The Ed Sullivan Show as Fred's son, who has sometimes been referred to by fans as Baby Monster. None of his known appearances address him by name, or specifically as a baby.