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.
TBAEver After as The Ringmaster
2024Secret Level (1 Episode) as Astropath / Ultramarines Orbital Command (voice)
2022Walker Independence (5 Episodes) as Hagan
2019Doom Patrol (12 Episodes) as Willoughby Kipling
2016MacGyver (1 Episode) as Fake Dr. Zito
2013Doctor Who: Farewell to Matt Smith as Unknown
2013Doctor Who Explained as Self
2013Sons of Liberty as Ackley
2010Mysterious Island as Young Captain Nemo
2010Xtinction: Predator X as Dr. Charles LeBlanc
2009White Collar (6 Episodes) as Curtis Hagen
2009Warehouse 13 (6 Episodes) as Benedict Valda
2009Dollhouse (3 Episodes) as Tanaka
2008Leverage (7 Episodes) as Jim Sterling
2008The Middleman (2 Episodes) as Manservant Neville
2008In Plain Sight (1 Episode) as Russell
2007Broken as Malcolm
2007Bionic Woman (1 Episode) as Unknown
2007Chuck (2 Episodes) as Ring Director
2007Burn Notice (1 Episode) as Tom Prescott
2006Shark (1 Episode) as Unknown
2005Supernatural (102 Episodes) as Crowley
2005Doctor Who (2 Episodes) as Canton Delaware
2005Medium (3 Episodes) as Charles Walker
2004Unstoppable as Leitch
2004Battlestar Galactica (7 Episodes) as Romo Lampkin
2004Evil Eyes as Peter
2004Megalodon as Mitchell Parks
2003NCIS (1 Episode) as Young Mr. Pain (uncredited)
2003Deep Shock as Chomsky
2003Jake 2.0 (1 Episode) as Hartman
2002Without a Trace (1 Episode) as Johnny Patani
2002Firefly (2 Episodes) as Badger
2002Fastlane (1 Episode) as Ronan Dennehy
2002Monk (1 Episode) as Chris Downey
2001New Alcatraz as Yuri
200124 (6 Episodes) as Ivan Erwich
2001Lost Voyage as Ian Fields
2001UC: Undercover (1 Episode) as Unknown
2001I Love 1990s (10 Episodes) as Unknown
2001The Chronicle (1 Episode) as Unknown
2001Special Unit 2 (1 Episode) as The Chameleon
2001Lady in the Box as Unknown
2000CSI: Crime Scene Investigation (1, 1 Episode) as Rod Darling, Dimitri Sadesky
2000The Invisible Man (1 Episode) as Yuri Gregorov
2000Farewell, My Love as M. J.
1999Out of the Cold as Fang
1999Soldier of Fortune, Inc as Christopher 'C.J.' Yates
1998Charmed (1 Episode) as Arnon
1998Martial Law (1 Episode) as Unknown
1998V.I.P. (2 Episodes) as Nero
1997Soldier of Fortune, Inc. (20 Episodes) as CJ Yates
1997The Practice (1 Episode) as Eddie Wicks
1996Lover's Knot as Nigel Bowles
1995Sliders (1 Episode) as Jack
1995Star Trek: Voyager (1 Episode) as Leucon
1994M.A.N.T.I.S. (1 Episode) as Unknown
1993In the Name of the Father as Paddy Armstrong
1993The X-Files (1 Episode) as Bob the Caretaker / Cecil L'Ively
1991Silk Stalkings (1 Episode) as Eric