John Sergeant: John Sergeant. Actor: Casualty. John Sergeant was born on 14 April 1944 in Oxford, Oxfordshire, England, UK. He is an actor, known for Casualty (1986), On the Margin (1966) and My Dad's the Prime Minister (2003). He has been married to Mary Smithees since 4 January 1969. They have two children.
Known For: Casualty (Journalist), On the Margin (Actor), My Dad's the Prime Minister (John Sergeant), Argumental (Self - Host(archive footage))