 | Bill Hader als Flint Lockwood / FLDSMDFR (voice) |
 | Anna Faris als Sam Sparks (voice) |
 | James Caan als Tim Lockwood (voice) |
 | Neil Patrick Harris als Steve the Monkey (voice) |
 | Andy Samberg als Brent McHale (voice) |
 | Mr. T als Officer Earl Devereaux (voice) |
 | Bruce Campbell als Mayor Shelbourne (voice) |
 | Khamani Griffin als Cal Devereaux (voice) |
 | Benjamin Bratt als Manny (voice) |
 | Al Roker als Patrick Patrickson (voice) |
 | Lauren Graham als Fran Lockwood (voice) |
 | Will Forte als Joe Towne (voice) |
 | Max Neuwirth als Young Flint (voice) |
| Angela Shelton als Regina Devereaux (voice) |
 | Peter Siragusa als Rufus (voice) |
 | Neil Flynn als Weather News Network Producer (voice) |
 | Liz Cackowski als Flint's Teacher (voice) |
 | Isabella Acres als Additional Voices (voice) |
 | Lori Alan als Additional Voices (voice) |
 | Shane Baumel als Additional Voices (voice) |
 | Bobb'e J. Thompson als Additional Voices (voice) |
 | Bob Bergen als Additional Voices (voice) |
 | Cody Cameron als Additional Voices (voice) |
| Marsha Clark als Additional Voices (voice) |
 | John Cygan als Additional Voices (voice) |
| Ann Dominic als Additional Voices (voice) |
 | Paul Eiding als Additional Voices (voice) |
 | Jess Harnell als Additional Voices (voice) |
 | Gary A. Hecker als Additional Voices (voice) |
 | Phil Lord als Additional Voices (voice) |
 | Sherry Lynn als Additional Voices (voice) |
 | Danny Mann als Additional Voices (voice) |
 | Mona Marshall als Additional Voices (voice) |
 | Mickie McGowan als Additional Voices (voice) |
 | Christopher Miller als Additional Voices (voice) |
 | Laraine Newman als Additional Voices (voice) |
 | Jan Rabson als Additional Voices (voice) |
 | Grace Rolek als Additional Voices (voice) |
 | Jeremy Shada als Additional Voices (voice) |
| Will Shadley als Additional Voices (voice) |
 | Melissa Sturm als Additional Voices (voice) |
 | Ariel Winter als Additional Voices (voice) |
| Phil Lord | Director |
| Christopher Miller | Director |
| Ron Barrett | Author |
| Judi Barrett | Author |
| Phil Lord | Screenplay |
| Christopher Miller | Screenplay |
| Rob Greenberg | Screenplay |
| Pam Marsden | Producer |
| Lydia Bottegoni | Producer |
| Chris Juen | Producer |
| Yair Landau | Executive Producer |
| Mark Mothersbaugh | Original Music Composer |
| Robert Fisher Jr. | Editor |
| Mary Hidalgo | Casting |
| Justin K. Thompson | Production Design |
| Michael Kurinsky | Art Direction |
| Carey Yost | Art Department Manager |
| James Baker | Animation |
| Mary Ellen Bauder | Production Manager |
| Arun Ram-Mohan | Lighting Artist |
| Simon Rodgers | Art Department Manager |
| Ron Smith | Animation |
| Carter Bays | Thanks |
| Peter J. Burns | Thanks |
| Jordan Cahan | Thanks |
| Shoghi Castel De Oro | Thanks |
| Penney Finkelman Cox | Thanks |
| Paul C. Gerard | Thanks |
| Will Gluck | Thanks |
| Jim Hecht | Thanks |
| Jay Lavender | Thanks |
| Warren Leonhardt | Thanks |
| Steven Liu | Thanks |
| Stephen Lunn | Thanks |
| Deanna Marsigliese | Thanks |
| Chris McKenna | Thanks |
| Tim McKeon | Thanks |
| Judah Miller | Thanks |
| Andrea Miloro | Thanks |
| Adam Pava | Thanks |
| Sandra Rabins | Thanks |
| Don Rhymer | Thanks |
| Erica Rivinoja | Thanks |
| Claudette Roland | Thanks |
| Rodney Rothman | Thanks |
| Craig Thomas | Thanks |
| David N. Weiss | Thanks |
| Barbara Zipperman | Thanks |
| Brian D. Scott | Lead Animator |
| Rod Ibanez | Lighting Artist |
| Rod Ibanez | Hair Supervisor |
| Jimmy Fusil | Digital Intermediate |
| James T. Sale | Orchestrator |
| Andrew Crowley | Musician |
| Nicholas Bucknall | Musician |
| Paul Kegg | Musician |
| Roger Argente | Musician |
| Roger Linley | Musician |
| Marino Angeles | Art Department Coordinator |
| Michelle Wong | Art Department Coordinator |
| Danny Dimian | CG Supervisor |
| Karl Herbst | CG Supervisor |
| Michael Ford | CG Supervisor |
| R. Stirling Duguid | CG Supervisor |
| Daniel Kramer | Digital Effects Supervisor |
| Carey Smith | Digital Producer |
| David Farley | Post Production Supervisor |
| Andrea Solis | Software Engineer |
| Brian Wong | Software Engineer |
| Bruce Navsky | Software Engineer |
| Christopher Burdorf | Software Engineer |
| Dan Weston | Software Engineer |
| David Gordon | Software Engineer |
| Dhasarath Ravindranath | Software Engineer |
| François Chardavoine | Software Engineer |
| Geo Snelling | Software Engineer |
| James Salter | Software Engineer |
| Josh Wills | Software Engineer |
| Junko V. Igarashi | Software Engineer |
| Lu Kondor | Software Engineer |
| Lucas Miller | Software Engineer |
| Marc-Andre Davignon | Software Engineer |
| Mark Fickett | Software Engineer |
| Mathew Selby | Software Engineer |
| Michael Ball | Software Engineer |
| Robert Malikian | Software Engineer |
| Yueyue Zhang | Software Engineer |
| Cottalango Leon | Software Team Lead |
| J. Robert Ray | Software Team Lead |
| Moti Cohen | Software Team Lead |
| Sosh Mirsepassi | Software Team Lead |
| Alan Hawkins | Supervising Animator |
| Christopher D. Williams | Supervising Animator |
| Derek Friesenborg | Supervising Animator |
| James Crossley | Supervising Animator |
| Jayson Price | Supervising Animator |
| Alejandro Lostaunau | Systems Administrators & Support |
| Christopher Oey | Systems Administrators & Support |
| Creola Nickolette Jones | Systems Administrators & Support |
| Daniel Dorman | Systems Administrators & Support |
| Garrett Cox | Systems Administrators & Support |
| Terence Mills | Systems Administrators & Support |
| Tyler Franks | Systems Administrators & Support |
| Erin Lacey | Script Coordinator |
| Jason Cooper | Script Coordinator |
| Jessica L. Marshall | Script Coordinator |
| Josh Roessler | Script Coordinator |
| Carmen Woods | Assistant Editor |
| Arthur D. Noda | Associate Editor |
| Karl Armstrong | First Assistant Editor |
| Bill Dorais | Lighting Artist |
| Billy Brooks | Lighting Artist |
| Blaine Kennison | Lighting Artist |
| Brock J. Stearn | Lighting Artist |
| Cara Paul | Lighting Artist |
| Chad Belteau | Lighting Artist |
| Christine Lo | Lighting Artist |
| Craig Feifarek | Lighting Artist |
| D. Wallace Colvard | Lighting Artist |
| Enrique Munoz | Lighting Artist |
| James Fetter | Lighting Artist |
| Jean-Paul Beaulieu | Lighting Artist |
| jonathan Swartz | Lighting Artist |
| Jong Jin Choi | Lighting Artist |
| Jorge Bobadilla Jr. | Lighting Artist |
| Joshua Chapel | Lighting Artist |
| Kenji Sweeney | Lighting Artist |
| Kenneth Brain | Lighting Artist |
| Kieron Cheuk-Chi Lo | Lighting Artist |
| Laurent Solignac | Lighting Artist |
| Leslie Baker | Lighting Artist |
| Marcel Hemingway | Lighting Artist |
| Matt Giovingo | Lighting Artist |
| Matt Wheeler | Lighting Artist |
| Matthew Rampias | Lighting Artist |
| Pragya Tomar | Lighting Artist |
| Richard Liukis | Lighting Artist |
| Richard Matsushita | Lighting Artist |
| Roman Robbins | Lighting Artist |
| Rory Hinnen | Lighting Artist |
| Shannon McGee | Lighting Artist |
| Takumi Kimura | Lighting Artist |
| Tatchapon Lertwirojkul | Lighting Artist |
| Terry Ziegelman | Lighting Artist |
| Thomas Hollier | Lighting Artist |
| Victor Schutz | Lighting Artist |
| Winston Quitasol | Lighting Artist |
| Lynn Basas | Master Lighting Artist |
| Michael Lasker | Master Lighting Artist |
| Robert W. Crain | Master Lighting Artist |
| Mickie McGowan | ADR Voice Casting |
| Marc Ostroff | Production Accountant |
| Gredel Berrios Calladine | Production Office Coordinator |
| Tommy Bacorn | Production Office Coordinator |
| John Cannon | Assistant Sound Editor |
| Gary A. Hecker | Foley |
| Michael J. Broomberg | Foley |
| Mike Marino | Foley |
| Andrew Dorfman | Music Editor |
| Rachel Bolt | Musician |
| Christopher Guardino | Orchestrator |
| Richard Bronskill | Orchestrator |
| William Boston | Orchestrator |
| Brad Haehnel | Scoring Mixer |
| John Pospisil | Sound Designer |
| Ben Wilkins | Sound Effects Editor |
| John Dunn | Sound Effects Editor |
| Tom Burns | Sound Recordist |
| Geoffrey G. Rubay | Supervising Sound Editor |
| Jason George | Supervising Sound Editor |
| Abel Salazar | Animation |
| Adam Lawthers | Animation |
| Alan Rogers | Animation |
| Alex M. Lehmann | Animation |
| Andrew Lawson | Animation |
| Anthea Kerou | Animation |
| Antonin Plante | Animation |
| Atsushi Sato | Animation |
| Ben Kerr | Animation |
| Benjamin Su | Animation |
| Bill Haller | Animation |
| Chad Sellers | Animation |
| Claudio de Oliveira | Animation |
| Claus Pedersen | Animation |
| Daniel Edwards | Animation |
| Daryl Sawchuk | Animation |
| Dave Hardin | Animation |
| David Anthony Gibson | Animation |
| David Stodolny | Animation |
| Eric Lees | Animation |
| Eric Luhta | Animation |
| Ethan Hurd | Animation |
| Glen Sylvester | Animation |
| Graham Silva | Animation |
| Gwendelyn Robson | Animation |
| Igor Choromanski | Animation |
| Jacques Daigle | Animation |
| Jamil Lahham | Animation |
| Jason Figliozzi | Animation |
| Jeff Panko | Animation |
| Jeremy Bernstein | Animation |
| Jeremy Collins | Animation |
| Jinanavin Veerapatra | Animation |
| Joel Reid | Animation |
| Joseph Chong | Animation |
| Joshua Beveridge | Animation |
| Keith W. Smith | Animation |
| Kenn McDonald | Animation |
| Kevin Freeman | Animation |
| Kim Hazel | Animation |
| Luca Mazzoleni | Animation |
| Matt Kowaliszyn | Animation |
| Matthew Hasselmann | Animation |
| Matthew J. Munn | Animation |
| Melissa Hawkins | Animation |
| Min Kang | Animation |
| Nathan McConnel | Animation |
| Neth Nom | Animation |
| Patrick Danaher | Animation |
| Rahul Dabholkar | Animation |
| Ray Hsu | Animation |
| Rebecca Perez | Animation |
| Remington Scott | Animation |
| Roberto Espanto Domingo | Animation |
| Sebastien Bruneau | Animation |
| Shannon Justison | Animation |
| Stephen Hoogendyk | Animation |
| YuehChih Eric Lin | Animation |
| Zach Parrish | Animation |
| Zachary Torok | Animation |
| Jennifer S. Williams | Animation Department Coordinator |
| Lia Abbate | Animation Department Coordinator |
| Marvin Kim | Character Modelling Supervisor |
| Rob Bredow | VFX Supervisor |
| Andrew Gaskill | Visual Development |
| Antonio Canobbio | Visual Development |
| Armand Serrano | Visual Development |
| Chris Reccardi | Visual Development |
| Cristy Maltese | Visual Development |
| Dan Quarnstrom | Visual Development |
| Dean Gordon | Visual Development |
| Jerry Loveland | Visual Development |
| Marcelo Vignali | Visual Development |
| Mark Colangelo | Visual Development |
| Noëlle Triaureau | Visual Development |
| Pete Oswald | Visual Development |
| Raffaello Vecchione | Visual Development |
| Sylvain Deboissy | Visual Development |
| Ted Blackman | Visual Development |
| Paul Rudish | Visual Development |
| Brian Smith | ADR Mixer |
| Daniel Wehr | Scoring Mixer |
