Larry Block
From Muppet Wiki
Larry Block (b. 1942) is an actor who has appeared on many TV shows, including The Secret Storm, General Hospital, Charlie's Angels, M*A*S*H, Miami Vice, Murphy Brown and Law & Order.
In 1971, Block appeared on Sesame Street as Tom, who worked at Hooper's Store. Like Raúl Juliá and Charlotte Rae, Tom only appeared on the show during Season 3.

