Dave Goelz
Gonzo / Dr. Bunsen Honeydew / Waldorf / The Birdman (voice)
Steve Whitmire
Kermit the Frog / Rizzo the Rat / Beaker / Cosmic Fish #1 / Rainbow / Miss Piggy (assistant) (voice)
Bill Barretta
Pepe the Prawn / Bobo as Rentro / Johnny Fiama / Bubba the Rat / Cosmic Fish #2 (voice)
Jerry Nelson
Robin / Statler / Ubergonzo (voice)
Brian Henson
Dr. Phil Van Neuter / Sal Minella (voice)
Frank Oz
Miss Piggy / Fozzie Bear / Animal / Sam the Eagle (voice)
Rickey Boyd
Additional Muppet Performer / Animal (assistant) / Beach Hippie
Alice Dinnean
Additional Muppet Performer
John Henson
Additional Muppet Performer / Sweetums
Adam Hunt
Additional Muppet Performer / Scooter (voice)
Peter Linz
Additional Muppet Performer / Miss Piggy (assistant) / Beach Hippie
Drew Massey
Additional Muppet Performer / Beach Hippie
Ed May
Additional Muppet Performer
Andrew Stone
Additional Muppet Performer
Kim Allen
Additional Muppet Performer
Evy Berman
Additional Muppet Performer
John Boone
Additional Muppet Performer
Dennis W. Britt
Additional Muppet Performer
Tyler Bunch
Additional Muppet Performer
Lisa Consolo
Additional Muppet Performer
Rowell Gormon
Additional Muppet Performer
BJ Guyer
Additional Muppet Performer
Greg Jarnigan
Additional Muppet Performer
Rob Killen
Additional Muppet Performer
James J. Kroupa
Additional Muppet Performer
Bruce Lanoil
Additional Muppet Performer
Bob Lynch
Additional Muppet Performer
Pamela O'Conner
Additional Muppet Performer
Tim Parati
Additional Muppet Performer
Thom Stanley
Additional Muppet Performer
Lisa Sturz
Additional Muppet Performer
Mark Sutton
Additional Muppet Performer
Allan Trautman
Additional Muppet Performer
Jay Tyson
Additional Muppet Performer
Gregg Wallace
Additional Muppet Performer
Gary Owens
UFO Mania Announcer (voice) (uncredited)
Jack Angel
Additional Muppet Performer (uncredited)
Rodger Bumpass
Additional Muppet Performer (uncredited)
Joe Cobb Jr.
M.I.B. Guard (uncredited)
Bill Farmer
Additional Muppet Performer (uncredited)
Langley McArol
Security Guard (uncredited)
Mickie McGowan
Additional Muppet Performer (uncredited)
Phil Proctor
Additional Muppet Performer (uncredited)
John E. Kennedy
Fozzie Bear / Sam the Eagle / Beach Hippie
