Mr. Chatterly
From Muppet Wiki
Mr. Chatterly was the host of Alphabet Chat on Sesame Street. He appeared in Season 9, usually holding a pipe, and then returned in Season 24, sans pipe.
Chatterly's discussions of letters are always interrupted by animals, people or production staff wandering onto the set.
His name is a reference to the D.H. Lawrence novel, Lady Chatterly's Lover.
