 | Shawn Mendes als Lyle (voice) |
 | Javier Bardem als Hector P. Valenti |
 | Winslow Fegley als Josh |
 | Constance Wu als Mrs. Primm |
 | Scoot McNairy als Mr. Primm |
 | Brett Gelman als Mr. Grumps |
 | Ego Nwodim als Carol |
 | Lyric Hurd als Trudy |
 | Jason Kravits als Cy |
 | Ben Palacios als Crocodile Reference |
 | Joshua Vasquez als 8th Grade Boy |
 | Marc Farley als Animal Store Owner |
 | Sal Viscuso als Judge |
 | Adam Murray als Lowlife |
| Mary Neely als Security Technician Mary |
 | Don DiPetta als Paramedic |
 | Lindsey Moser als Wrestling Coach |
 | Matthew Risch als Walkie Talkie Police Officer |
 | Clayton English als Young Security Guard |
 | Mac Wells als Show Security Guard |
 | Jef Holbrook als Audition Stage Manager |
 | Matthew Wilkas als Night Construction Worker |
 | Lauren Boyd als Live Show Stage Manager |
| Reif Howey als Sweep Dancer |
 | Evangeline Miller als Sweep Dancer |
 | Jene Moore als Sweep Dancer |
| Chance Mizell als Sweep Dancer |
| Christine Moon als Zookeeper |
 | Angela Davis als HOA Member |
| Kathryn Orlando als HOA Member |
| Caden Brillantes als Wrestling Student |
| Kyson Galligan als Wrestling Student |
| Alton Williams als Wrestling Student |
| Thomas Williams als Wrestling Student |
| Irving Thigpen als Wrestling Student |
 | Matt Rogers als Show Host |
| Eric Rutherford als Esteemed Judge |
| Eboni Nichols als Show Judge |
 | Taylor James als Judge |
| Donnie Cormier als Security Guard #3 |
| Rick Pearson als Live Show Producer |
 | Al Thompson als Animal Control Officer |
 | Keiko Bell als Court Spectator (uncredited) |
| Will Speck | Director |
| Josh Gordon | Director |
| Josh Gordon | Producer |
| Will Speck | Producer |
| Hutch Parker | Producer |
| Dan Wilson | Executive Producer |
| Kevin K. Vafi | Executive Producer |
| Bernard Waber | Book |
| Jacob Robert van Winkle | Health and Safety |
| Benj Pasek | Lyricist |
| Benj Pasek | Executive Producer |
| Justin Paul | Lyricist |
| Justin Paul | Executive Producer |
| Shawn Mendes | Songs |
| Bob Dohrmann | Executive Producer |
| Tarak Ben Ammar | Executive Producer |
| Andy Mitchell | Executive Producer |
| William Davies | Screenplay |
| Bryan Yaconelli | Line Producer |
| Matthew Margeson | Original Music Composer |
| Javier Aguirresarobe | Director of Photography |
| Richard Pearson | Editor |
| Lindsay Graham Ahanonu | Casting |
| Mary Vernieu | Casting |
| Mark Worthington | Production Design |
| Leslie McDonald | Art Direction |
| David Meyer | Supervising Art Director |
| Kathy Orlando | Set Decoration |
| Kym Barrett | Costume Design |
| Weldon Steinke | Key Hair Stylist |
| Lauren Scarbrough | Makeup Artist |
| Kristen Saia | Key Hair Stylist |
| David Forrest | Makeup Department Head |
| Destiny She'ri Gordon | Makeup Artist |
| Tara DiPetrillo | Makeup Artist |
| Travis Culberson | Makeup Artist |
| Lani Barry | Makeup Artist |
| David Velasco | Assistant Production Manager |
| Christopher Miller | Production Supervisor |
| Eboni Nichols | Choreographer |
| James Henry Benton | Grip |
| Charles Croughwell | Second Unit Director |
| Patrick Cunningham | Second Assistant Director |
| Craig A. Pinckes | First Assistant Director |
| Neslihan Arslan | Assistant Art Director |
| Justin DeMartino | Set Dresser |
| Mark Keever | Set Dresser |
| Rob Nagy | Assistant Art Director |
| Greg Papalia | Set Designer |
| Rebecca Runyon | Assistant Art Director |
| Anne-Marie Saville | Set Dresser |
| Grace Wang | Set Designer |
| Dean Wolcott | Set Designer |
| Shelley Zortman | Set Decoration Buyer |
| Anna Behlmer | Sound Re-Recording Mixer |
| Matt Cavanaugh | Sound Effects Editor |
| Adrian Cepeda | ADR Mixer |
| Kevin Cerchiai | Boom Operator |
| Greg Crawford | ADR Mixer |
| Sam Fan | Sound Effects Editor |
| Charles German | Boom Operator |
| Robin Harlan | Foley Artist |
| Alana Knutson | Utility Sound |
| Jeremy Kozura | Sound Effects Editor |
| Oleg Kulchytskyi | Sound Re-Recording Mixer |
| Ferenc Lukács | ADR Recordist |
| Herwig Maurer | Sound Editor |
| Ken McGill | Sound Effects Editor |
| Arielle McGrail | Dialogue Editor |
| Chris McNaughton | ADR Recordist |
| Sarah Monat | Foley Artist |
| Whit Norris | Sound Mixer |
| Mark Paterson | Sound Re-Recording Mixer |
| Steve Urban | Dialogue Editor |
| Jason Todd | Utility Sound |
| Chris Whiteside | ADR Mixer |
| Matt Dengel | Special Effects Coordinator |
| Adam I. Rochester Sr. | Special Effects Technician |
| Wayne Rowe | Special Effects Technician |
| Breanna Adams | Visual Effects Coordinator |
| Sanjna Banik | Visual Effects Coordinator |
| Spriha Banik | Visual Effects Producer |
| Joe Bauer | Visual Effects Supervisor |
| Marlon Victor Bondoc | VFX Artist |
| Paul Boyd | VFX Artist |
| Meagan Chancellor | VFX Artist |
| Daniel Edery | VFX Artist |
| Kerry Joseph | Visual Effects Producer |
| Lloyd Lee Barnett | VFX Artist |
| Teresa Mathew | Visual Effects Producer |
| Jesse Morrow | Visual Effects |
| Cathy Shaw | VFX Artist |
| Terry Shigemitsu | VFX Artist |
| Doug Spilatro | VFX Artist |
| Brody Thiele | Visual Effects Coordinator |
| Meow Nutjaree Wannasri | VFX Artist |
| Danya Bateman | Stunt Double |
| Jwaundace Candece | Stunts |
| John Copeman | Utility Stunts |
| Charles Croughwell | Stunt Coordinator |
| Thomas DuPont | Stunt Double |
| Michelle Fisichella | Stunt Double |
| Chris Gann | Stunts |
| Jacob Garcia | Stunts |
| Sierra Hawkins | Stunt Double |
| Grant Koo | Utility Stunts |
| Mick O'Rourke | Stunts |
| CJ Padera | Stunts |
| Steve Rizzo | Stunt Driver |
| Michael Russo | Utility Stunts |
| Devin Sanchez | Stunt Double |
| Christian Stokes | Stunts |
| Eric Stratemeier | Stunts |
| Nick D. Allin | Grip |
| Silas Dubois Clements | Grip |
| Brandon Cundiff | Key Grip |
| Stephen Grum | Gaffer |
| Gregory Irwin | First Assistant "A" Camera |
| Eric Leftridge | First Assistant "B" Camera |
| Daniel L. Maldonado | Grip |
| D.J. Phillips | Second Assistant "B" Camera |
| Betsy Glick | Costume Supervisor |
| Michelle Johnson | Hair Department Head |
| Massimo Gattabrusi | Hairstylist |
| Riley Flanagan | Additional Second Assistant Director |
| Janelle Beaudry | Stunts |
| David Alessi | Stunt Driver |
| Alec Back | Stunts |
| Cameron Croughwell | Stunts |
