Mark Billingham

Mark Billingham is. Their work on CrossBinge spans TV, films and books, including Special Forces: World's Toughest Test, with ratings and cross-media recommendations.

Mark Anthony Billingham MBE QCB, known as Billy Billingham, is a British former soldier, author, television personality, and security consultant. He is best known as the Chief Instructor on the Channel 4 series SAS: Who Dares Wins and its international adaptations, as well as for his decorated career in the Special Air Service (SAS).