Mark Andreas Sheppard (born 30 May 1964) is a British actor and musician. He is often credited as Mark A. Sheppard. Sheppard is known for playing the demon/King of Hell Crowley on Supernatural and for his recurring roles as lawyer Romo Lampkin on the Battlestar Galactica reboot, Interpol investigator James Sterling on Leverage, and small-time crime lord Badger on Joss Whedon's Firefly. Description above from the Wikipedia article Mark Sheppard, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Filmography

• 2026Ever After — The Ringmaster
• 2025Exes — Senior Investigator Gary
• Secret Level — Astropath / Ultramarines Orbital Command (voice)
• Walker Independence — Hagan
• Doom Patrol — Willoughby Kipling
• 2018Kin — Third Assistant Director
• MacGyver — Fake Dr. Zito
• 2013Doctor Who: Farewell to Matt Smith
• 2013Sons of Liberty — Ackley
• 2012Mysterious Island — Young Captain Nemo, Director
• 2010Xtinction: Predator X — Dr. Charles LeBlanc
• Dollhouse — Tanaka
• Warehouse 13 — Benedict Valda
• White Collar — Curtis Hagen
• In Plain Sight — Russell
• Leverage — Jim Sterling
• The Middleman — Manservant Neville
• Bionic Woman — Anthony Anthros
• 2007Broken — Malcolm
• Burn Notice — Tom Prescott
• Chuck — Ring Director
• Shark — Rupert Stone
• Doctor Who — Canton Delaware
• Medium — Charles Walker
• Supernatural — Crowley
• Battlestar Galactica — Romo Lampkin
• 2004Evil Eyes — Peter
• 2004Megalodon — Mitchell Parks
• 2004Unstoppable — Leitch
• 2003Deep Shock — Chomsky
• Jake 2.0 — Hartman
• Las Vegas — George Beckwahr
• NCIS — Young Mr. Pain (uncredited)
• Fastlane — Ronan Dennehy
• Firefly — Badger
• Monk — Chris Downey
• Without a Trace — Johnny Patani
• 24 — Ivan Erwich
• I Love 1990s
• 2001Lady in the Box
• 2001Lost Voyage — Ian Fields
• 2001New Alcatraz — Yuri
• Special Unit 2 — The Chameleon
• The Chronicle
• UC: Undercover
• CSI: Crime Scene Investigation — Rod Darling, Dimitri Sadesky
• 2000Farewell, My Love — M. J.
• The Invisible Man — Yuri Gregorov
• 1999Out of the Cold — Fang
• 1999Soldier of Fortune, Inc — Christopher 'C.J.' Yates
• Charmed — Arnon
• Martial Law — Clay Sullivan
• 1998Nether World — California
• V.I.P. — Nero
• Soldier of Fortune, Inc. — CJ Yates
• The Practice — Eddie Wicks
• 1996Lover's Knot — Nigel Bowles
• Sliders — Jack
• Star Trek: Voyager — Leucon
• M.A.N.T.I.S.
• 1993In the Name of the Father — Paddy Armstrong
• The X-Files — Bob the Caretaker / Cecil L'Ively
• Silk Stalkings — Eric

Appearances as themselves (1)

• 2013Doctor Who Explained — Self