Cast principale
Jerry Nelson
Herry Monster (voice) / Frazzle (voice) / Maurice Monster (voice) / Two-Headed Monster (left half) (voice) / Announcer (voice)
Kevin Clash
Elmo (voice)
Frank Oz
Cookie Monster (voice) / Grover (voice) / Clancy (voice)
Cheryl Blaylock
Ed Christie
Jim Henson
Harvey Monster (voice)
Richard Hunt
Stuie Monster (voice) / Lavender Frazzletone (voice) / Two-Headed Monster (right half) (voice) / Furline Huskie (voice) / Kermit the Frog (voice)
Rick Lyon