Frank Oz

Frank Oz (born Richard Frank Oznowicz; May 25, 1944) is an American film director, actor, voice actor and puppeteer.

Films -- Live-Action

 * In Star Wars and many other SW films except the first ones, he voices and puppeteers Yoda

Puppet Shows
""The Force is strong.""
 * In Sesame Street, he voices Grover, Bert and Cookie Monster.
 * In The Muppet Show, he voices Piggy, Fozzie, Animal and Sam the Eagle