 | Ricky Gervais Dominic Badguy |
 | Ty Burrell Jean Pierre Napoleon |
 | Tina Fey Nadya |
 | Steve Whitmire Kermit the Frog, Foo Foo, Statler, Beaker, Lips, Rizzo the Rat, Link Hogthrob, The Newsman |
 | Eric Jacobson Miss Piggy, Fozzie Bear, Sam Eagle, Animal |
 | Dave Goelz Gonzo, Dr. Bunsen Honeydew, Zoot, Beauregard, Waldorf |
 | Bill Barretta Pepe the King Prawn, Rowlf, Dr. Teeth, The Swedish Schef, Bobo the Bear, Big Mean Carl, Baby Boss, Carlo Flamingo, Leprechaun Security Guard |
 | David Rudman Scooter, Janice, Miss Poogy, Bobby Benson, Wayne |
| Matt Vogel Constantine, Floyd Pepper, Sweetums, Pops, Robin, Lew Zealand, Crazy Harry, 80s Robot, Camilla, Uncle Deadly |
| Peter Linz Walter, Manolo Flamingo |
 | Tony Bennett Himself |
 | Hugh Bonneville Irish Journalist |
| William Brand Berliner #2 |
 | Jemaine Clement Prison King |
 | Kenneth Collard Berliner #1 |
 | Sean Combs Himself |
 | Rob Corddry First AD |
 | Mackenzie Crook Prado Museum Guard #1 |
 | Lady Gaga Herself |
 | Zach Galifianakis Hobo Joe |
 | Josh Groban Maximum Security Prisoner |
 | Salma Hayek Herself |
 | Tom Hiddleston The Great Escapo |
 | Tom Hollander Theater Manager |
 | Toby Jones Prado Museum Guard #2 |
 | Frank Langella Beefeater Vicar |
 | Ray Liotta Big Papa |
 | James McAvoy UPS Guy |
 | Chloƫ Grace Moretz Newspaper Girl |
 | Usher Raymond The Usher |
 | Miranda Richardson Berliner at Window |
 | Saoirse Ronan Herself |
 | Til Schweiger German Cop |
 | Russell Tovey Delivery Man |
 | Danny Trejo Danny Trejo |
 | Stanley Tucci Ivan the Guard |
 | Christoph Waltz Himself |
| Mark Badham Security Guard |
| Jill Buchanan Irish Audience Member |
| John Duggan Fan at Miss Piggy's Wedding |
 | Louise Gold Annie Sue |
| Jaspal Badwell Wedding Guest |
 | Russell Balogh Interpol Officer |
| Paul Blackwell Interpol Officer |
| Hannah Blamires German Tourist |
| Dilyana Bouklieva Wedding Fan |
| Pablo Bubar Dublin-Madrid Spectator |
| Robert Clayton Gulag Prison Guard |
 | Ian Conningham Russian Gulag Prisoner |
| Pamela Betsy Cooper German Lady in the Audience |
| Chris Cowlin Police Officer |
| Lee Craven Prisoner |
 | Sam Creed German Stage Manager |
| Gioacchino Jim Cuffaro Spanish Audience |
| Marco Flammer Interpol Agent |
 | Dexter Fletcher |
 | Elisa Gabrielli Actress |
| John W.G. Harley Russian Gulag Prisoner |
| Lee Nicholas Harris Fruit & Veg Stall Holder |
| Richard Herdman Commuter |
| Luke Howard Spanish Train Porter |
 | Jason Konopisos Bouncer |
 | Shaun Lucas Cameraman |
 | Martyn Mayger Gulag Prisoner |
| Pete Meads German Audience Member |
 | Bridgit Mendler Minnie |
| Morris Minelli The Guest at Miss Piggy's Wedding |
| Stuart Mulcaster Spanish Commuter |
 | Harry Myers Prisoner |
| Adam Nowell Journalist |
 | Hugh O'Brien German Theater Goer |
| Michael Oosterom Additional Muppet Performer |
| Nick Owenford Berlin Police |
| Ed Pearce Wedding Guest |
 | Mike Quinn Muppet Performer |
| Deborah Rosan Chief |
 | Julian Seager Russian Gulag Prisoner |
 | Peter Serafinowicz |
 | Karol Steele Berliner |
 | Raymond Waring |
| Matt Weinglass Film Crew |
| Anick Wiget Irish Lady |
| Mak Wilson Additional Muppet Performer |
| Yusei Fan |
| Angie Inwards German Museum Worker |
| Matthew David McCarthy Irish Audience Member |
| Glenn Webster Fan at Miss Piggy's Wedding |