Jennifer Shannon has made a career of finding rare garage sale treasures to resell at the consignment store she owns with her business partner, Dani. When she finds a wedding dress that was worn on the day a groom went missing, Jennifer uses her knack for solving puzzles to investigate this unsolved cold case. After meeting the dress’s original owner, Helen, and finding traces of blood on the dress, Jennifer digs deeper into the decades-old mystery with the help of Detective Lynwood, and the support of her husband, Jason. With every clue that Jennifer uncovers, she gets closer to either finding the long-missing groom, or uncovering a wedding day murder.
Unfortunately the movie Garage Sale Mystery: The Wedding Dress is not yet available on HBO Max.
| Directing | Peter DeLuise | Director |
| Writing | Walter Klenhard | Writer |
| Production | Harvey Kahn | Producer |
| Sound | Terry Frewer | Original Music Composer |
| Camera | Mathias Herndl | Director of Photography |
| Editing | Richard Schwadel | Editor |
| Production | Jackie Lind | Casting |
| Art | Jill Scott | Production Design |
| Art | Cherie Kroll | Art Direction |
| Art | Mark Boyko | Set Decoration |
| Costume & Make-Up | Candace Crookshanks | Costume Design |
| Costume & Make-Up | Kara Alaric | Key Hair Stylist |
| Costume & Make-Up | Jennifer Kaminski | Makeup Department Head |
| Production | Catherine Kretz | Production Manager |
| Art | John Morstad | Property Master |
| Sound | Jeff Jackman | Sound Designer |
| Sound | Robert McDonagh | Boom Operator |
| Sound | Roger Morris | Dialogue Editor |
| Crew | Dale Shippam | Special Effects Coordinator |
| Visual Effects | Barry Liu | Visual Effects Supervisor |
| Crew | Brett Armstrong | Stunt Coordinator |
| Camera | Bettina Strauss | Still Photographer |
| Camera | Steve Gilmour | Dolly Grip |
| Lighting | Jesse Keay | Gaffer |
| Lighting | Cedar O'Rourke | Best Boy Electric |
| Camera | Ryan Plummer | Still Photographer |
| Camera | Connor Welsh | Dolly Grip |
| Production | Jason Durocher | Location Manager |
| Sound | Ryan Neill | Music Supervisor |
| Directing | Holly Atchison | Script Supervisor |
| Crew | Yale Kussin | Production Controller |
| Production | Marnie Termuende | Associate Producer |
| Directing | Bill Mizel | First Assistant Director |
| Directing | Vince Coates | Second Assistant Director |
| Costume & Make-Up | Jenn Touchie | Assistant Costume Designer |
| Costume & Make-Up | Gillian Kieft | Costume Set Supervisor |
| Costume & Make-Up | Andrea Mah | Truck Costumer |
| Art | Michelle McLean | Assistant Set Decoration |
| Art | Ryan Casey | Leadman |
| Costume & Make-Up | Amy-Leigh Poitras | Makeup & Hair |
| Costume & Make-Up | Angelique Gruetzmacher | Makeup & Hair |
| Production | Sara Brown | Extras Casting |
| Production | Alex Mcrae | Extras Casting Assistant |
| Camera | Ryan Purcell | "A" Camera Operator |
| Camera | William Minsky | First Assistant "A" Camera |
| Camera | Kyle Brown | Second Assistant "A" Camera |
| Camera | Shawn Kim | Second Assistant "A" Camera |
| Camera | Lindsay George | "B" Camera Operator |
| Camera | Boris Martens | First Assistant "B" Camera |
| Camera | Alana Kagan | Second Assistant "B" Camera |
| Camera | Ryan Purcell | Steadicam Operator |
| Sound | Scott Aitken | Production Sound Mixer |
| Directing | Kevin Royce | Third Assistant Director |
| Production | Yale Kussin | Production Coordinator |
| Production | Laura Obenaus | Assistant Production Coordinator |
| Production | Adrian Bojidar | Assistant Production Coordinator |
| Crew | Marnie Termuende | Production Controller |
| Production | Svatia Sakarova | Accountant |
| Production | Tania Susi | Production Accountant |
| Production | Brad Erickson | Assistant Location Manager |
| Crew | Dean Fitzpatrick | Transportation Coordinator |
| Crew | Stefano Chimarios | Transportation Captain |
| Crew | Violet Barisoff | Craft Service |
| Crew | Dawn Knight | Post Production Supervisor |
| Production | Sepideh Merchant | Post Production Coordinator |
| Editing | David Grave | Assistant Editor |
| Editing | Andrew Russell | Assistant Editor |
| Editing | Jimmy Hsu | Colorist |
| Editing | Jay Harada | Online Editor |
| Editing | Kevin Reid | Online Editor |
| Editing | Shaun Lang | Online Editor |
| Sound | Miguel Nunes | Sound Re-Recording Mixer |
| Sound | Angelo Nicoloyannis | Sound Re-Recording Mixer |
| Sound | Angelo Nicoloyannis | Sound Editor |
| Sound | Don Harrison | Foley Artist |
| Sound | Ian Mackie | Foley Artist |