From Disney's Hollywood Studios Wiki
Jim Henson was the creator of the Muppets. He was born September 24, 1936 and passed away May 16, 1990. During his lifetime, he started the Jim Henson Company, and created the Jim Henson's Creature Shop
Jim was the performer behind many of the Muppet's most famous characters, including Kermit the Frog, Rowlf the Dog, and the Swedish Chef featured in Muppet*Vision 3-D, and the recorded voice of the characters in Here Come the Muppets and Muppets on Location: Days of Swine and Roses.
A picture of a puppet version of Jim Henson is seen in the waiting area of Muppet*Vision 3-D.
Muppet*Vision 3-D was the final project Mr. Henson personally got to work on before his death.
Jim Henson began working with puppets as a college student, creating the show Sam and Friends in 1955 for a local Washington, D.C. television station. The energetic Muppets soon became a popular fixture, and led to appearances on national variety shows. In the early 1960s, Henson moved to New York City, working with collaborators Frank Oz, Jerry Juhl and Don Sahlin on a variety of projects, including a regular guest spot on The Jimmy Dean Show for the first Muppet star, Rowlf the Dog.
In 1969, Henson was invited to participate in a ground-breaking educational show for television, Sesame Street. Initially, the Muppets were meant to be just one element among many on the show -- but the popularity of the characters soon made the Muppets the core of the show. Sesame Street is now in its 39th season.
In 1976, Henson created his signature project -- The Muppet Show, a weekly prime-time variety show filled with songs, sketches and talented guest stars. The Muppet Show was a huge international success, making unlikely stars out of the entire cast.
The Muppet Show cast has continued to entertain audiences for over 30 years, spinning off into a popular series of movies, and TV Specials.
In the 1980s, Henson created new worlds -- the magical underground civilization of Fraggle Rock, the imagination-filled nursery of Muppet Babies, and the fantasy worlds of The Dark Crystal and Labyrinth. Henson's work has continued to live on beyond his death in 1990, and new productions featuring his creations are always in progress.