Mark, who has become a familiar face from his role as Sherlock鈥檚 brother, Mycroft Holmes, and as Tycho Nestoris an envoy from the Iron Bank of Braavos in the fourth and fifth seasons of Game of Thrones, is originally from Sedgefield and grew up opposite Winterton psychiatric hospital where his father worked.
A former pupil of Heighington Church of England Primary School and Woodham Comprehensive in Newton Aycliffe, Gatiss shot to fame with cult series The League of Gentlemen which first aired in 1999 and for which he won a British Academy Television Award, a Royal Television Society Award and the prestigious Golden Rose of Montreux.
In recent years Mark has also had a number of stage roles including Menenius, a Senator of Rome in a production of Shakespeare鈥檚 Coriolanus 鈥� he was nominated for a Laurence Olivier Award for Best Actor in a Supporting Role.
Darlington Mayor Councillor Gerald Lee said: 'I am delighted to welcome Mark back to his home region and that he has agreed to what will be a very special event. Mark has been involved in some of the most popular television shows of our time and this is a fantastic opportunity to hear him talk about his work and ask him questions as well as raise some money for charity.'
Professor Gerda Roper, Dean of 海角直播鈥檚 School of Arts & Media, added: 'This region has created an enormous amount of talent and it is always lovely to be able to welcome back someone who is a success and has had a major impact on popular culture. This will be a very special opportunity to hear Mark talk about his life and career.'
Northern Echo Editor Peter Barron MBE will be hosting the event and the proceeds will go to Butterwick Hospice Children鈥檚 Unit and Phoenix House Recovery Unit.
Follow @海角直播Uni on Twitter and find out about opportunities to win free tickets and also say what you would like to ask Mark using the hashtag #askgatiss.