Marty Robinson
From Transformers Wiki
Marty Robinson (March 9, 1954) is an American puppeteer. He's best known for his work on Sesame Street, where his characters include Mr. Snuffleupagus, Telly Monster, and Slimey, as well as providing the facial puppeteering for Leonardo in the 1990 Teenage Mutant Ninja Turtles film and as Audrey II in the stage version of Little Shop of Horrors.
He was the principal puppeteer of the giant Powermaster Optimus Prime in the live-action segments of the "fifth season" of The Transformers.
