Gregg Berger Bio Gregg Berger Voice / Actor Transformers, The Garfield Show, Spaced Invaders, More! Gregg Berger is an American Voice / Actor, who is Internationally known for his iconic roles as GRIMLOCK in G1Transformers and Transformers Fall of Cybertron, and the eagerly anticipated Power of the Primes, as Odie, Squeak, Harry and others from the...