The Spooky Tale of Captain Underpants Hack-a-ween (2019) — Cast
Cast
| Kari Wahlgren | Hoppy |
| Kevin Michael Richardson | Stitch (Voice) |
| Stephen Tobolowsky | Creepy |
| Jorge Diaz | Melvin Belli |
| Nat Faxon | Underpants |
| Dayci Brookshire | Jessica |
| Patty Mattson | Harold's Lalwyer |
| David Koechner | Stitch (Voice) |
| Mindy Sterling | Max's Mom |
| Ramone Hamilton | George |
| Sean Astin | Stitch (Voice) |
| Jay Gragnani | Harold Lutz |
| Peter Hastings | Hologram Comic |
| Evan Kishiyama | Gooch |
| Brennan Murray | Bo |
| Clancy Brown | Ree |
| Erica Luttrell | Erica |
Crew
| Matt Smith | Writer |
| Ryan Hansen | Storyboard Artist |
| Dav Pilkey | Novel |
| Andrew Bendik | Storyboard Artist |
| Ian Young | Storyboard Artist |
| Mark Banker | Writer |
| Peter McCown | Line Producer |
| Peter Hastings | Executive Producer |
| Derek Moore | Storyboard Artist |
| Todd Grimes | Supervising Producer |
| Ashley Laidlaw | Line Producer |
| Seung Woo Cha | Director |
| Kevin Peaty | Director |
| David Wiebe | Executive In Charge Of Production |
| Fred Kron | Music |
| Jared Faber | Music |