Frank Oz (born Richard Frank Oznowicz); is a British-born American film director, actor, voice actor and puppeteer who is known for creating and performing the characters Miss Piggy and Fozzie Bear in The Muppet Show and for directing films including the 1986 Little Shop Of Horrors remake and Dirty Rotten Scoundrels. He is also the operator and voice of Yoda in the Star Wars series... (Wikipedia)

James Maury "Jim" Henson was an American puppeteer best known as the creator of The Muppets. As a puppeteer, Henson performed in various television programs, such as Sesame Street and The Muppet Show, films such as The Muppet Movie and The Great Muppet Caper, and creator of advanced puppets for projects like Fraggle Rock, The Dark Crystal, and Labyrinth. He was also an Oscar-nominated film director, Emmy Award-winning television producer, and the founder of The Jim Henson Company... (Wikipedia)

Dave Goelz has 34 credits at Criticker, including: The Dark Crystal, The Muppets, The Muppet Christmas Carol, The Muppet Movie and Muppet Treasure Island

Louise Gold has 5 credits at Criticker, including: The Dark Crystal, Spitting Image, Billy the Kid and the Green Baize Vampire, The Secret Life of Toys and Cleo Laine

Jerry Nelson has 28 credits at Criticker, including: The Muppet Christmas Carol, The Muppet Movie, Muppet Treasure Island, The Muppets Take Manhattan and The Great Muppet Caper

Richard Hunt has 17 credits at Criticker, including: The Muppet Movie, The Muppets Take Manhattan, The Great Muppet Caper, The Muppet Show and Sesame Street Presents: Follow that Bird

Peter Harris has 6 credits at Criticker, including: The Muppet Show, A Muppet Family Christmas, The Jim Henson Hour, Charles Aznavour and Juliet Prowse

Jerry Juhl has 15 credits at Criticker, including: The Muppet Christmas Carol, The Muppet Movie, Muppet Treasure Island, Muppets from Space and The Muppet Show

Joseph A. Bailey has 4 credits at Criticker, including: Christmas Eve on Sesame Street, Big Bird in China, Madeline Kahn, Cleo Laine and Julie Andrews

Cleo Laine has just 1 credit at Criticker: Cleo Laine

Bruce Schwartz has just 1 credit at Criticker: Cleo Laine

The Muppets has just 1 credit at Criticker: Cleo Laine and Julie Andrews