Biography
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.
Known for
★8.3Supernatural
★8.4The X-Files
★7.6Doctor Who
★8.2Charmed
★7.6NCIS
★8.3Firefly
★7.9In the Name of the Father
★7.824
★8.2Battlestar Galactica
★8.2White Collar
★7.5Doom Patrol
★7.6CSI: Crime Scene Investigation
★7.9Monk
★7.7Chuck
★7.8Star Trek: Voyager
★7.3MacGyver
★7.7Warehouse 13
★7.5Burn Notice
★7.4Secret Level
★7.5Medium
★7.2Dollhouse
★7.6Sliders
★7.6Leverage
★7.2Without a Trace
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