Jim HensonKermit the Frog, Waldorf, Rowlf the Dog, Link Hogthrob, The Swedish Chef, Dr. Teeth, The Newsman (voice) 
Frank OzMiss Piggy / Fozzie Bear / Animal / Sam Eagle / Marvin Suggs / George the Janitor (voice) 
Jerry NelsonFloyd Pepper, Dr. Julius Strangepork, Pops, Robin the Frog, Lew Zealand, Louis Kazagger, Chicken, Crazy Harry (voice) 
Dave GoelzGonzo / Zoot / Beauregard / Dr. Bunsen Honeydew (voice) 
Richard HuntStatler, Scooter / Janice / Beaker / Wayne / Sweetums (voice)
Eren OzkerHilda / Wanda / Janice (voice)