Muppet Sing Alongs: It's Not Easy Being Green

Kevin Clash

Clifford / Billy Bunny / P.J. / Leon (voice)

Dave Goelz

Gonzo / Wendell / Otto the Octopus / Boober Fraggle (voice)

Richard Hunt

Charlie / Scooter / Fish (voice) (archive footage)

John E. Kennedy

Additional Muppets (voice)

Bruce Lanoil

Additional Muppets (voice)

Peter Linz

Additional Muppets (voice)

Rob Mills

Additional Muppets (voice) (archive footage)

Kathryn Mullen

Mokey Fraggle / Frog (voice) (archive footage)

Jerry Nelson

Robin the Frog / Emmet Otter / Gobo Fraggle / Bust of Beethoven / Frog (voice) (archive footage)

David Rudman

Frog / Farmer Lear (voice) (archive footage)