Trailer
Images
 | Jason Segel as Gary |
 | Amy Adams as Mary |
 | Chris Cooper as Tex Richman |
 | Rashida Jones as CDE Executive |
 | Steve Whitmire as Kermit / Beaker / Statler / Rizzo / Link / Newsman (voice) |
 | Peter Linz as Walter (voice) |
 | Eric Jacobson as Miss Piggy / Fozzie / Animal / Sam Eagle / Marvin Suggs (voice) |
 | Dave Goelz as Gonzo / Honeydew / Zoot / Beauregard / Waldorf (voice) |
 | Bill Barretta as Swedish Chef / Rowlf / Teeth / Pepe / Bobo / Muppet Gary (voice) |
 | David Rudman as Scooter / Janice / Miss Poogy / Wayne (voice) |
 | Matt Vogel as Pepper / Camilla / Sweetums / Robot / Deadly / Harry (voice) |
 | Alan Arkin as Tour Guide |
 | Bill Cobbs as Grandfather |
 | Zach Galifianakis as Hobo Joe |
 | Ken Jeong as Punch Teacher Host |
 | Jim Parsons as Human Walter |
 | Eddie Pepitone as Postman |
 | Kristen Schaal as Moderator |
 | Sarah Silverman as Greeter |
 | Eddie 'Piolin' Sotelo as TV Executive |
 | Raymond Ma as Elderly Asian Man |
 | Shu Lan Tuan as Elderly Asian Woman |
 | Donald Glover as Junior CDE Executive |
 | Dahlia Waingort as TV Executive |
 | Jonathan Palmer as Reporter One |
 | Don Yanan as Reporter Two |
 | Michael Albala as TV Executive |
 | Julia Marie Franzese as Punch Teacher Kid |
 | Gunnar Smith as Gary Age 6 |
 | Connor Gallagher as Gary Age 9 |
 | Justin Marco as Gary Age 13 |
 | Cameron Kasal as Laughing Kid |
 | Justin Tinucci as Laughing Kid |
 | Alex Long as Laughing Kid |
 | Aria Noelle Curzon as Waitress |
 | Emily Blunt as Miss Piggy's Receptionist |
 | James Carville as James Carville |
 | Leslie Feist as Smalltown Resident |
 | Whoopi Goldberg as Whoopi Goldberg |
 | Selena Gomez as Selena Gomez |
 | Dave Grohl as Animool |
 | Neil Patrick Harris as Neil Patrick Harris |
 | Judd Hirsch as Judd Hirsch |
 | John Krasinski as John Krasinski |
 | Rico Rodriguez as Rico Rodriguez |
 | Mickey Rooney as Smalltown Resident |
 | Tyler Bunch as Fozzie Moopet / Thog / Additional Muppet Performer (voice) |
 | Bruce Lanoil as Additional Muppet Performer (voice) |
| Michelan Sisti as Additional Muppet Performer (voice) |
 | Paul McGinnis as Additional Muppet Performer (voice) |
| Greg Ballora as Additional Muppet Performer (voice) |
 | David Alan Barclay as Additional Muppet Performer (voice) |
 | Tim Blaney as Additional Muppet Performer (voice) |
 | Kevin Carlson as Additional Muppet Performer (voice) |
 | Leslie Carrara-Rudolph as Additional Muppet Performer (voice) |
| Kristin Charney as Additional Muppet Performer (voice) |
| Nathan Danforth as Additional Muppet Performer (voice) |
 | Alice Dinnean as Afghan Hound / Wanda / Additional Muppet Performer (voice) |
| Julia Gunn as Additional Muppet Performer (voice) |
 | BJ Guyer as Additional Muppet Performer (voice) |
 | Tanya Haden as Additional Muppet Performer (voice) |
| Patrick Johnson as Additional Muppet Performer (voice) |
| Sean W. Johnson as Additional Muppet Performer (voice) |
| Len Levitt as Additional Muppet Performer (voice) |
 | James Murray as Additional Muppet Performer (voice) |
 | Michael Oosterom as Additional Muppet Performer (voice) |
 | Karen Prell as Additional Muppet Performer (voice) |
 | Mike Quinn as Additional Muppet Performer (voice) |
| David Skelly as Additional Muppet Performer (voice) |
| Andy Stone as Additional Muppet Performer (voice) |
| Art Vega as Additional Muppet Performer (voice) |
| Alex Villa as Additional Muppet Performer (voice) |
 | Chase Woolner as Additional Muppet Performer (voice) |
 | Jack Black as Jack Black (uncredited) |
 | Mike Carlucci as Scout Troop Leader (uncredited) |
| Reese Hartwig as Punch Teacher Contestant (uncredited) |
 | Jerry Nelson as Telethon Announcer (voice) (uncredited) |
 | Jim Henson as Kermit the Frog (archive voice) (uncredited) |
 | Ricky Gervais as Himself (uncredited) |
| Writing | |
| Jason Segel | Writer |
| Nicholas Stoller | Writer |
Directing | |
| James Bobin | Director |
Crew | |
| Clay Cullen | Stunts |
Directing | |
| Allan Graf | Second Unit Director |
Crew | |
| Danny Wynands | Stunts |
Writing | |
| Jim Henson | Characters |
Crew | |
| Steve Kelso | Stunts |
| Jeremy Fry | Stunts |
| Mickey Giacomazzi | Stunts |
Sound | |
| Bret McKenzie | Songs |
Crew | |
| Nicole Randall | Stunts |
| Doug Coleman | Stunts |
| Debbie Evans | Stunts |
Art | |
| Steve Saklad | Production Design |
Sound | |
| Beau Borders | Sound Re-Recording Mixer |
| D. Chris Smith | Sound Editor |
Production | |
| Nicholas Stoller | Executive Producer |
Sound | |
| Sean McCormack | Supervising Sound Editor |
| Will Riley | Sound Editor |
| Hector C. Gika | Sound Editor |
Costume & Make-Up | |
| Laura Baker | Set Costumer |
| Suzanne Cranfill | Costume Supervisor |
| Paula Truman | Costume Supervisor |
Production | |
| John G. Scotti | Executive Producer |
Sound | |
| Christophe Beck | Original Music Composer |
Costume & Make-Up | |
| Cheryl Ann Nick | Makeup Department Head |
Sound | |
| Tim Tuchrello | Sound Editor |
Art | |
| Bradley Rubin | Assistant Art Director |
Production | |
| Martin G. Baker | Executive Producer |
| Todd Lieberman | Producer |
Sound | |
| Benjamin L. Cook | Sound Designer |
Production | |
| Jason Segel | Executive Producer |
Sound | |
| Kami Asgar | Supervising Sound Editor |
Art | |
| Tracey A. Doyle | Set Decoration |
Sound | |
| Kevin O'Connell | Sound Re-Recording Mixer |
| Brian Armstrong | Sound Editor |
Production | |
| David Hoberman | Producer |
Sound | |
| Steve Cantamessa | Sound Mixer |
| Scott Harber | Sound Mixer |
Costume & Make-Up | |
| Ronnie Specter | Makeup Department Head |
Art | |
| Andrew Max Cahn | Art Direction |
Costume & Make-Up | |
| Jamelle Flowers | Set Costumer |
Art | |
| John Berger | Art Direction |
| Mark Robert Taylor | Assistant Art Director |
Camera | |
| Don Burgess | Director of Photography |
Costume & Make-Up | |
| Rahel Afiley | Costume Design |
Editing | |
| James Thomas | Editor |
Sound | |
| John T. Cucci | Foley Artist |
| Dan O'Connell | Foley Artist |
| John Guentner | Foley Mixer |
| Richard Duarte | Foley Mixer |
Crew | |
| Andrew Bird | Additional Music |
Camera | |
| Michael Burgess | Second Unit Director of Photography |
Crew | |
| Max Daniels | Stunts |
| David Boucher | Propmaker |
| Simon Rhee | Fight Choreographer |
Lighting | |
| Rafael E. Sánchez | Gaffer |
Art | |
| Tracey Wilson | Storyboard Artist |
