Master?
Greg Berg (born, November 26, 1960) is an American voice actor and voice double. He has done voice-overs for various cartoons and video games. He has also been used in films as a voice match for certain male Hollywood actors. He has done over 100 voices and sound alikes. Among his more prominent roles are Fozzie and Scooter on Muppet Babies, Huckleberry Hound on Yo Yogi, The Larry Fine Robot in Revenge of the Nerds, Mr Funny in The Mr Men Show, Hector the Bulldog in The Looney Tunes Show, The Robot in Toy Story, Pterry in Flint the Time Detective, Donatello and Rocksteady on several episodes of the original Teenage Mutant Ninja Turtles cartoon, and the Diminutive Igor in Transformers: Dark of the Moon.
No, he is not Gregg Berger.