Mark Sheppard
May 30, 1964 (60 years old) in London, England, UK
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.
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Known For

Supernatural
Crowley

NCIS
Young Mr. Pain (uncredited)

Doctor Who
Canton Delaware

CSI: Crime Scene Investigation
Rod Darling

The X-Files
Bob the Caretaker / Cecil L'Ively

Charmed
Arnon

Star Trek: Voyager
Leucon

24
Ivan Erwich

Without a Trace
Johnny Patani

Monk
Chris Downey
Credits
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Ever After FutureThe Ringmaster★ NR
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Secret Level 2024Astropath / Ultramarines Orbital Command (voice)★ 7.5
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Walker Independence 2022Hagan★ 6.6
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Doom Patrol 2019Willoughby Kipling★ 7.6
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MacGyver 2016Fake Dr. Zito★ 7.3
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★ 5.8
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Doctor Who Explained 2013Self★ 8.5
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Sons of Liberty 2013Ackley★ 3.8
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Mysterious Island 2010Young Captain Nemo★ 4.6
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Dr. Charles LeBlanc★ 3.8
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White Collar 2009Curtis Hagen★ 8.2
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Warehouse 13 2009Benedict Valda★ 7.7
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Dollhouse 2009Tanaka★ 7.2
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Leverage 2008Jim Sterling★ 7.6
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The Middleman 2008Manservant Neville★ 7.7
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In Plain Sight 2008★ 7.1
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Broken 2007Malcolm★ 5.6
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Bionic Woman 2007★ 6.3
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Chuck 2007Ring Director★ 7.7
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Burn Notice 2007Tom Prescott★ 7.5
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Shark 2006★ 6.8
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Supernatural 2005Crowley★ 8.3
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Doctor Who 2005Canton Delaware★ 7.5
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Medium 2005Charles Walker★ 7.5
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Unstoppable 2004Leitch★ 5.2
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Battlestar Galactica 2004Romo Lampkin★ 8.2
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Evil Eyes 2004Peter★ 3.1
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Megalodon 2004Mitchell Parks★ 4.5
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NCIS 2003Young Mr. Pain (uncredited)★ 7.6
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Deep Shock 2003Chomsky★ 5.2
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Jake 2.0 2003Hartman★ 7
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Without a Trace 2002Johnny Patani★ 7.3
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Firefly 2002Badger★ 8.3
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Fastlane 2002Ronan Dennehy★ 6.6
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Monk 2002Chris Downey★ 7.9
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New Alcatraz 2001Yuri★ 3.7
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24 2001Ivan Erwich★ 7.8
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Lost Voyage 2001Ian Fields★ 4.8
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UC: Undercover 2001★ 6.3
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I Love 1990s 2001★ NR
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The Chronicle 2001★ 8.4
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Special Unit 2 2001The Chameleon★ 7.4
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Lady in the Box 2001★ 6.5
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Rod Darling★ 7.6
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The Invisible Man 2000Yuri Gregorov★ 7
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Farewell, My Love 2000M. J.★ 3
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Out of the Cold 1999Fang★ NR
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Christopher 'C.J.' Yates★ 4.5
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Charmed 1998Arnon★ 8.2
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Martial Law 1998★ 7.1
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V.I.P. 1998Nero★ 5.3
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CJ Yates★ 6
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The Practice 1997★ 7.7
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Lover's Knot 1996Nigel Bowles★ 4
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Sliders 1995Jack★ 7.6
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Star Trek: Voyager 1995Leucon★ 7.8
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M.A.N.T.I.S. 1994★ 5
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Paddy Armstrong★ 7.9
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The X-Files 1993Bob the Caretaker / Cecil L'Ively★ 8.4
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Silk Stalkings 1991Eric★ 6.1