Sean Decker
Joined June 2008 — 11 parts in ten shows through 2014; returned in 2021 and has been a frequent main cast member ever since. He also recently retured to real theatre in Towngate Theatre's production of The Mousetrap (2025).
He is also the driving creative force behind the band Mr. Fancy Pants and sometimes performs with The M-80s.
Mystery Theatre Credits
As a principal in a first-run show:
- Rupert Dingle — Bridgerdon Abbey (2024)
- Professor Savory Scapegoat — Harry 4gotter and the Pantry of the Secret Sauces (2025)
As an understudy / in revival:
- Larry the Minchkin / Cowering Lion — Wizard of Odds (2008)
- Sid Geazer — Murder at the Kit Kat Klub (2008)
- Svetlana Tickov — Indiana Smith and the Raiders of the Lost Sequel (2008)
- Newt Diamond — Murder at the Kit Kat Klub (2008)
- Santa Claus — Slay Ride 4: Revenge of the Claus (2008)
- Tyler Thwart — One Life to Lose (2009)
- Mr. Gulp / Wicked Witch — Wizard of Odds (2010)
- Heath Richard — Kill Phil (2011)
- Old King Cole — Once Upon a Crime (2011)
- Dr. Watson — Dr. Jackal and Mr. Hype (2012)
- Squeegee — The Pirates of Poughkeepsie (2014)
- Johnny Armstrong — Johnny B. Dead (2021)
- Mr. Gulp / Wicked Witch — Wizard of Odds (2022)
- Larry the Minchkin / Cowering Lion — Wizard of Odds (2022)
- Barney Collander — Mission: Unpossible (2023)
- Ratso — Indiana Smith and the Raiders of the Lost Sequel (2023)
- Professor Plumb-loco — The Maltese Ferret (2023)
- Detective Frank Cannon — Slay Ride 5 — CSI: North Pole (2023)
- Leonard Beerstein — Overture for an Undertaker (2024)
- Ron Cheny, Jr. — Tales from the Script (2024)
- Santa Claus (understudy) — Slay Ride 7: The Buttcracker Suite (2024)
- Floyd the Barber — Mayberry R.I.P. (2025)
The Mystery Theatre Unlimited, at various times, features:
Emeritus Members
Others Who Have Appeared with the Company
Last updated: October 14, 2025