​Mark Andreas Sheppard (born 30 May 1964) is an English actor and musician, born in London of an Irish-German background. He is often credited as "Mark A. Sheppard". Lately, Sheppard is best known for playing the demon Crowley in the TV series Supernatural. Description above from the Wikipedia article Mark Sheppard, licensed under CC-BY-SA, full list of contributors on Wikipedia.

• Leverage (2008)

  
• New Alcatraz (2001)

  
• Unstoppable (2004)

  
• Deep Shock (2003)

  
• Megalodon (2004)