
Acting · 61 years old
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. Description above from the Wikipedia article Mark Sheppard, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Doctor Who Explained
Self

The Chronicle

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

Firefly
Badger

Supernatural
Crowley

White Collar
Curtis Hagen

Battlestar Galactica
Romo Lampkin

Charmed
Arnon

Monk
Chris Downey

In the Name of the Father
Paddy Armstrong

24
Ivan Erwich

Star Trek: Voyager
Leucon

Chuck
Ring Director

The Middleman
Manservant Neville

Warehouse 13
Benedict Valda

CSI: Crime Scene Investigation
Rod Darling

CSI: Crime Scene Investigation
Dimitri Sadesky

NCIS
Young Mr. Pain (uncredited)

The Practice
Eddie Wicks

Doctor Who
Canton Delaware