When the Scooby gang visits a dude ranch, they discover that it and the nearby town have been haunted by a ghostly cowboy, Dapper Jack, who fires real fire from his fire irons. The mystery only deepens when it’s discovered that the ghost is also the long lost relative of Shaggy Rogers!
Unfortunately the movie Scooby-Doo! Shaggy's Showdown is not yet available on HBO Max.
| Sound | Kelly Ann Foley | ADR Editor |
| Editing | Steve Donmyer | Editor |
| Production | Sam Register | Executive Producer |
| Sound | Kelly Ann Foley | Dialogue Editor |
| Sound | Kristopher Carter | Original Music Composer |
| Production | Alan Burnett | Co-Producer |
| Sound | Mark A. Keatts | Supervising Dialogue Editor |
| Production | Brandon Vietti | Supervising Producer |
| Sound | Michael McCuistion | Original Music Composer |
| Sound | Lolita Ritmanis | Original Music Composer |
| Production | Collette Sunderman | Casting |
| Sound | Patrick J. Foley | ADR Editor |
| Production | Zahra Dowlatabadi | Line Producer |
| Production | Ed Adams | Production Manager |
| Sound | Michael Garcia | ADR Editor |
| Production | Bobbie Page | Production Supervisor |
| Sound | Michael Garcia | Foley Editor |
| Production | Jay Bastian | Executive In Charge Of Production |
| Production | Liz Carroll | Administration |
| Sound | Patrick J. Foley | Dialogue Editor |
| Directing | Matt Peters | Director |
| Writing | Doug Langdale | Writer |
| Writing | Candie Langdale | Writer |
| Sound | Mark A. Keatts | Supervising ADR Editor |
