Jane Krakowski
Claire's Mom
Richard Griffiths
Santa Claus
Steve Whitmire
Kermit the Frog / Rizzo the Rat / Statler / Beaker (voice)
Madison Pettis
Claire
Whoopi Goldberg
Taxi Driver
Dave Goelz
The Great Gonzo / Waldorf / Dr. Bunsen Honeydew / Zoot (voice)
Bill Barretta
Pepe the Prawn / Swedish Chef / Rowlf / Dr. Teeth / Bobo the Bear / Husband Pigeon (voice)
Michael Bloomberg
Himself (as Mayor Michael Bloomberg)
Eric Jacobson
Fozzie Bear / Miss Piggy / Animal / Sam the Eagle (voice)
Matt Vogel
Floyd Pepper / Lew Zealand / Crazy Harry / Robin the Frog / Son Pigeon / Additional Muppets (voice)
David Rudman
Scooter / Janice / Additional Muppets (voice)
Nathan Lane
Officer Meany
Jesse L. Martin
Postal Worker
Petra Němcová
Beaker's Girlfriend
Steve Schirripa
Mobster
Tony Sirico
Mobster
Uma Thurman
Joy
Paul Williams
Elf
Pam Arciero
Additional Muppets (voice)
Heather Asch
Additional Muppets (voice)
Tyler Bunch
Wife Pigeon / Additional Muppets (voice)
Leslie Carrara-Rudolph
Additional Muppets (voice)
Stephanie D'Abruzzo
Additional Muppets (voice)
James Godwin
Additional Muppets (voice)
James J. Kroupa
Additional Muppets (voice)
Tim Lagasse
Additional Muppets (voice)
Peter Linz
Additional Muppets (voice)
Noel MacNeal
Sweetums / Additional Muppets (voice)
Jim Martin
Additional Muppets (voice)
Paul McGinnis
Additional Muppets (voice)
Martin P. Robinson
Sweetums / Additional Muppets (voice)
Nadine Ellis
Dancer
Kevin Sateri
Dancer
Douglas Caldwell
Dancer
Mary Ann Lamb
Dancer
Terrance Reddick
Dancer
Warren Adams
Dancer
Paul Becker
Postal Dancer
Peter Conboy
Holiday Commuter
Paul T. Gosselin
Postal Customer
Bill Timoney
Additional Voices
Guy Veryzer
Mailman