After solving their last mystery at Spooky Island, the Mystery Inc. gang is back in Coolsville, where they are being honored with their very own exhibit at the Coolsonian Criminology Museum. However, when a masked villain steals costumes of classic monsters on display and brings them to life, the gang must come out of retirement to solve the case.
Unfortunately the movie Scooby-Doo 2: Monsters Unleashed is not yet available on HBO Max.
| Writing | James Gunn | Writer |
| Production | Richard Suckle | Producer |
| Production | Kelley Smith-Wait | Executive Producer |
| Production | Joseph Barbera | Executive Producer |
| Directing | Raja Gosnell | Director |
| Production | Charles Roven | Producer |
| Sound | David Newman | Original Music Composer |
| Camera | Oliver Wood | Director of Photography |
| Editing | Kent Beyda | Editor |
| Production | Brent O'Connor | Executive Producer |
| Crew | Alette Falle | Stunts |
| Crew | Richard Brooks | Stunts |
| Crew | Ashlea Earl | Stunts |
| Visual Effects | Hugo Dominguez | Visual Effects |
| Visual Effects | Andrew Arnett | Animation |
| Crew | Bill Haller | Supervising Animator |
| Visual Effects | Matt Williames | Animation |
| Visual Effects | Brian Dowrick | Animation |
| Visual Effects | Leigh H. Rens | Animation |
| Visual Effects | Steve Cady | Animation |
| Visual Effects | Jeff Croke | Animation |
| Visual Effects | Angie Jones | Animation |
| Visual Effects | Steve Harwood | Animation |
| Visual Effects | Chris Lentz | Animation |
| Directing | Steeve Boulianne | Layout |
| Visual Effects | Kristin Solid | Animation |
| Production | Alan Glazer | Co-Producer |
| Production | Richard Cowan | Associate Producer |
| Production | James Gunn | Co-Producer |
| Production | Mary Vernieu | Casting |
| Crew | Nesta Chapman | Stunts |
| Crew | James Bamford | Stunts |
| Crew | J.J. Makaro | Stunt Coordinator |
| Crew | Doug Chapman | Stunts |
| Art | Bill Boes | Production Design |
| Costume & Make-Up | Leesa Evans | Costume Design |
| Art | Michael N. Wong | Art Direction |
| Art | Shepherd Frankel | Supervising Art Director |
| Art | Tedd Kuchera | Set Decoration |
| Art | Don MacAulay | Art Direction |
| Art | Brian Shell | Construction Coordinator |
| Camera | Diyah Pera | Still Photographer |
| Costume & Make-Up | Luisa Dalmagro | Set Costumer |
| Crew | Fernando Favila | Makeup Effects |
| Art | Constantine Sekeris | Conceptual Design |
| Art | Mira Caveno | Set Designer |
| Camera | Rick Allen | Grip |
| Art | Warren Dunlop | Construction Foreman |
| Camera | Glen A. Dickson | Additional Camera |
| Art | Daphne Klebe | Art Department Coordinator |
| Camera | Dan Mannix | Steadicam Operator |
| Art | Brad Oleksy | Greensman |
| Crew | Patrick Booker | Carpenter |
| Crew | Tony Swatton | Armorer |
| Crew | Todd Shifflett | Digital Effects Supervisor |
| Art | Brent Gloeckler | Sculptor |
| Camera | Tim Arasheben | Helicopter Camera |
| Costume & Make-Up | Anji Bemben | Hairstylist |
| Crew | Joey Lessard | CG Supervisor |
| Crew | Joan Kelley Bierman | Post Production Supervisor |
| Crew | Rick Rasmussen | Picture Car Coordinator |
| Crew | Andy Armstrong | Stunt Coordinator |
| Lighting | John Lai | Lighting Artist |
| Sound | Markus Czyzewski | Music Editor |
| Costume & Make-Up | Bill Terezakis | Prosthetic Supervisor |
| Crew | Ivan Neulander | Software Engineer |
| Sound | Kelly Zombor | Boom Operator |
| Camera | Steven J. Winslow | Camera Technician |
| Crew | Lance Johnson | Property Master |
| Crew | Steve Linn | Systems Administrators & Support |
| Crew | Daniel Arkin | Visual Effects Editor |
| Lighting | Ronnie Baran | Best Boy Electric |
| Production | Juliet Verni | Production Coordinator |
| Lighting | Cory Hodson | Rigging Gaffer |
| Art | John Alvarez | Assistant Art Director |
| Crew | Chris Bradford | Security |
| Crew | David Allinson | Special Effects Coordinator |
| Crew | Ronald Schlueter | Video Assist Operator |
| Production | Bill Draper | Executive In Charge Of Production |
| Crew | Cody Laudan | Utility Stunts |
| Sound | Gregory Jamrok | Orchestrator |
| Crew | Steve Ellis | Transportation Captain |
| Crew | László Sebõ | Technical Supervisor |
| Lighting | Christopher Charles Kempinski | Lighting Technician |
| Production | Daniel R. Chavez | Executive In Charge Of Post Production |
| Production | Kirk Johns | Location Manager |
| Production | Rif Dagher | Researcher |
| Sound | Darren Higman | Music Supervisor |
| Production | Mandy Butler | Production Accountant |
| Editing | Matt Diezel | Assistant Editor |
| Lighting | Raymond Chen | Lighting Supervisor |
| Sound | David Husby | Production Sound Mixer |
| Crew | Ray Evans | Driver |
| Lighting | Tim Atkins | Gaffer |
| Production | Brent O'Connor | Unit Production Manager |
| Crew | Michael Shand | CGI Supervisor |
| Crew | Laura Boddington | Stand In |
| Crew | Peter Huff | Transportation Coordinator |
| Production | Charles Lyall | Production Manager |
| Art | Peter Ochotta | Art Department Assistant |
| Camera | Sandes Ashe | First Assistant Camera |
| Costume & Make-Up | Gitte Axen | Makeup Artist |
| Crew | Dwane McIsaac | Chef |
| Crew | Jim Rankin | Craft Service |
| Crew | Nick Allen | Stunts |
| Production | Julia Frittaion | Publicist |
| Visual Effects | Benton Jew | Creature Design |
| Visual Effects | Mike Splatt | Special Effects Supervisor |
| Visual Effects | Stephanie Allen | Visual Effects Producer |
| Sound | Karen Schell | Sound |
| Visual Effects | Keith Hunter | Modeling |
| Visual Effects | Chris Bond | Visual Effects Supervisor |
| Visual Effects | Mathieu Blouin | Animation Supervisor |
| Visual Effects | David Zbriger | I/O Supervisor |
| Sound | Chris Hogan | Sound Editor |
| Visual Effects | Laide Agunbiade | Digital Compositors |
| Sound | Mark Kenna | Dolby Consultant |
| Visual Effects | Melany Bourgouin | Visual Effects Coordinator |
| Editing | Valance Eisleben | Editorial Services |
| Sound | Kerry Ann Carmean | Sound Effects Editor |
| Crew | Erika A. McKee | Digital Producer |
| Sound | Michael D. Wilhoit | Supervising Sound Editor |
| Visual Effects | Conrad Dueck | 3D Supervisor |
| Sound | Scott Wolf | Sound Designer |
| Sound | Jeff Glueck | Sound Engineer |
| Visual Effects | August Hall | Visual Development |
| Crew | Adam Shankman | Choreographer |
| Crew | Jeff Sanca | Stunts |
| Camera | Jim Filippone | Helicopter Camera |
| Directing | David Klohn | Second Assistant Director |
| Art | Tracy B. Dunlop | Set Dresser |
| Camera | Tim Hogan | Key Grip |
| Art | Santino Barile | Assistant Property Master |
| Art | Perry Battista | Lead Set Dresser |
| Directing | Misha Bukowski | Third Assistant Director |
| Editing | Mo Henry | Negative Cutter |
| Camera | Todd Hlagi | Dolly Grip |
| Costume & Make-Up | Alison Fraser | Costume Coordinator |
| Crew | Barrie Wells | Techno Crane Operator |
| Directing | Richard Cowan | First Assistant Director |
| Crew | Jim Filippone | Pilot |
| Costume & Make-Up | Stacey Butterworth | Wig Designer |
| Production | James McKenzie Moore | Casting Assistant |
| Lighting | Dennis Brock | Chief Lighting Technician |
| Visual Effects | Kelvin Lee | Lead Animator |
| Sound | Kelly Oxford | ADR Editor |
| Sound | Laura Harris Atkinson | Supervising Dialogue Editor |
| Crew | Jason Crosby | Marine Coordinator |
| Production | Jody Chow | Assistant Production Coordinator |
| Sound | Jeff Carson | Supervising Music Editor |
| Visual Effects | Adam de Bosch Kemper | Pre-Visualization Supervisor |
| Visual Effects | Mitch Gates | Visual Effects Technical Director |
| Sound | Tom Boyd | Musician |
| Sound | Diana Stata | Assistant Music Supervisor |
| Sound | David Kudell | Assistant Sound Editor |
| Crew | Anne Fletcher | Choreographer |
| Crew | Laurence Todd Rosenthal | Stunts |
| Crew | Claude Bouchard | Stunts |
| Crew | Deb Macatumpag | Stunts |
| Crew | Todd W. Nobles | Stunts |
| Crew | James Bamford | Martial Arts Choreographer |
| Crew | Heath Stevenson | Stunts |
| Crew | Michele Waitman | Stunts |
| Crew | Paul Becker | Stunts |
| Crew | Melissa Barker | Stunts |
| Crew | Jim Bentley | Stunts |
| Crew | Tom Farr | Stunts |
| Crew | Brent Connolly | Stunts |
| Crew | Dustin Brooks | Stunts |
| Crew | David Mylrea | Stunts |
| Crew | Mitchell A. Lee Yuen | Stunts |
| Crew | Nicholas Harrison | Stunts |
| Crew | Brad Loree | Stunts |
| Crew | Gaston Morrison | Stunts |
| Crew | Angela Uyeda | Stunts |
| Crew | Leanne Buchanan | Stunts |
| Crew | Bill Edwards | Stunts |
| Crew | Dave Hospes | Stunts |
| Crew | Cotton Mather | Stunts |
| Crew | Brian Lydiatt | Stunts |
| Crew | Scott Nicholson | Stunts |
| Crew | Beverly Knight | Stunts |
| Crew | Melissa R. Stubbs | Stunts |
| Directing | John MacCarthy | Second Unit First Assistant Director |
| Crew | Crystal Dalman | Stunts |
| Visual Effects | Peter Crosman | Visual Effects Supervisor |
| Sound | Laura Ziffren | Music Supervisor |
| Costume & Make-Up | Cydney Cornell | Hairdresser |
| Directing | Joanna Moore | Second Second Assistant Director |
| Costume & Make-Up | Elizabeth Beauchamp | Costumer |
| Costume & Make-Up | Rob Miller | Contact Lens Technician |
| Costume & Make-Up | Tamar Ouziel | Assistant Makeup Artist |
| Sound | Eric Gotthelf | ADR Mixer |
| Visual Effects | Whitney Kitchen | Animation Coordinator |
| Art | Brom | Storyboard Artist |
| Art | Shaun Bullied | Set Painter |
| Directing | Andy Armstrong | Second Assistant Director |
| Art | Sean Lavoie | Paint Coordinator |
| Art | Leah Hong | Graphic Designer |
| Crew | Darya Douglas-Andres | Special Effects Assistant |
| Camera | Jim Van Dijk | First Assistant "A" Camera |
| Visual Effects | Will Cunningham | Compositing Artist |
| Lighting | Herb DeWaal | Key Rigging Grip |
| Visual Effects | Cheryl Budgett | 2D Supervisor |
| Production | Errin Lally | Casting Coordinator |
| Production | Suzie Bruce | Assistant Accountant |
| Crew | Jason Piccioni | Digital Supervisor |
| Production | Jina Johnson | Assistant Location Manager |
| Crew | Jim Bach | Playback Coordinator |
| Editing | Lionel Barton | Colorist |
| Visual Effects | Jacques Levesque | Compositing Supervisor |
| Production | Jamie Reid Tait | Second Assistant Production Coordinator |
| Camera | Michael Lemmers | Best Boy Grip |
| Crew | Jim Dunn | Stunt Double |
| Sound | James Moriana | Foley Artist |
| Crew | Mike Larivee | Special Effects Technician |
| Editing | Ron Barr | Digital Intermediate Editor |
| Sound | David Newman | Conductor |
| Camera | Harold Bernard | Second Assistant Camera |
| Editing | James Bluma | Assistant Editor |
| Visual Effects | Marta Knudsen | Matte Painter |
| Sound | Nerses Gezalyan | Foley Mixer |
| Editing | Anthony Harris | Digital Color Timer |
| Crew | Jay Anderson | Generator Operator |
| Visual Effects | Lindsay Hallett | Visual Effects Production Manager |
| Camera | Jim Bacon | Epk Producer |
| Lighting | Jeff Hall | Assistant Chief Lighting Technician |
| Production | Stephanie Boeke | Extras Casting |
| Production | Barbara Copp | Key Production Assistant |
| Production | Eve-Marie Gingras | Production Supervisor |
| Sound | Kimaree Long | Dialogue Editor |
| Sound | Michael Buffer | Musician |
