Jim Henson

Jim Henson was an American, best known for creating The Muppets.

History
He was controlling Kermit while Frank Oz was controlling a banjo when a swarm of frogs knocked Kermit from the rock, revealing Henson from behind it. Henson then ran away.

He is one of the many people on "Ned's List of Laudable Lefties".

Behind the Laughter
In real life, Jim Henson died in 1990, aged 53.