Kermit and Fozzie are newspaper reporters sent to London to interview Lady Holiday, a wealthy fashion designer whose priceless diamond necklace is stolen. Kermit meets and falls in love with her secretary, Miss Piggy. The jewel thieves strike again, and this time frame Miss Piggy. It's up to Kermit and Muppets to bring the real culprits to justice.
Jim Henson
as Kermit the Frog / Rowlf the Dog / Dr. Teeth / Waldorf / Swedish Chef / The Muppet Newsman
Frank Oz
as Miss Piggy / Fozzie Bear / Sam the Eagle / Animal (voice)
Dave Goelz
as Gonzo / Beauregard / Zoot / Dr. Bunsen Honeydew / Lobbuck Lou
Jerry Nelson
as Floyd Pepper / Pops / Lew Zealand / Crazy Harry / Louis Kazager
Richard Hunt
as Scooter / Statler / Sweetums / Janice / Beaker / Bubba
Steve Whitmire
as Rizzo the Rat / Lips (voice)
Charles Grodin
as Nicky Holiday
Diana Rigg
as Lady Holiday
John Cleese
as Neville
Jack Warden
as Mike Tarkenian
Robert Morley
as British Gentleman by Pond
Peter Ustinov
as Truck Driver
