John David Hannah is an actor by profession and did notable work in Scottish film and television industry. He took birth in East Kilbride in Lanarkshire in a family confined to parents and two elder sisters. He completed his education from Heathery Knowe Primary School and Claremont High School. He proceeded to become an electrician, but destiny took a different path and he ended up enrolling in Royal Scottish Academy of Music and Drama. The wedding bells rang for him on 20 January 1996 when he married Joanna Roth. After graduating, he tried his hands in different genres in the film industry.
He got his big break in the movie, Four Weddings and a Funeral where he played the character of Mathew. He did a negative role in Truth or Dare and played the character of a Psychopathic Killer. His work in
The Mummy trilogy got much appreciation from the viewers. He played a comic role throughout the series. Next came the role of Dr. lain McCallum in McCallum and the role of Jake Osbourne in Bad Blood. His big success came in when he established a production company in partnership with Murray Ferguson, who is a Scottish Film Producer.
The name of the production company is Clerkenwell Films, and its biggest production remains the Rebus series which was later taken under STV productions. He recently performed the role of Quintus Lentulus Batiatus in Spartacus: Blood and Sand. Epilepsy Association of Scotland found support from Hannah for their activities and he was also a part of Cut Conflict Campaign.