
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 the rest of the Muppets to bring the real culprits to justice.

Jim Henson
Kermit the Frog / Rowlf the Dog / Dr. Teeth / Waldorf / Swedish Chef / The Muppet Newsman / Zeke / Man in Dubonnet Club

Frank Oz
Miss Piggy / Fozzie Bear / Animal / Sam the Eagle / Gramps / Swedish Chef (voice)

Dave Goelz
The Great Gonzo / Beauregard / Zoot / Dr. Bunsen Honeydew / Lobbuck Lou / Singing Food (voice)

Jerry Nelson
Sergeant Floyd Pepper / Pops / Lew Zealand / Louis Kazagger / Bellhop Rat / Slim Wilson / "Dirty Bird" / Man in Park

Richard Hunt
Scooter / Statler / Sweetums / Janice / Beaker / Bellhop Rat / Bubba / Gramps / Monster / Singing Food / Cab Driver

Charles Grodin
Nicky Holiday

Diana Rigg
Lady Holiday

John Cleese
Neville

Robert Morley
British Gentleman by Pond

Peter Ustinov
Truck Driver

Jack Warden
Mike Tarkenian

Steve Whitmire
Rizzo the Rat / Lips / Bellhop Rat / Monster / Singing Food / Zeke (voice)

Happy-Go-Lucky
Happy-Go-Lucky

Sherlock Holmes
Sherlock Holmes

The Italian Job
The Italian Job

Die Musterknaben 2
Die Musterknaben 2

Robin and Marian
Robin and Marian

Beautiful Thing
Beautiful Thing

James and the Giant Peach
James and the Giant Peach

Muppet Treasure Island
Muppet Treasure Island

I Love Trouble
I Love Trouble

Kabhi Khushi Kabhie Gham
Kabhi Khushi Kabhie Gham

The Final Conflict
The Final Conflict

Little Shop of Horrors
Little Shop of Horrors