Mark McGowan (born 9 June 1964) is a British street artist, performance artist, film maker and prominent public protester who has gone by the artist name Chunky Mark and more recently The Artist Taxi Driver. By profession, McGowan is a London taxi driver and occasional University speaker and arts tutor. McGowan is known internationally for his performance art including shock art, street art and installation art, and as a stuntman, internet personality, video blogger, social commentator, social critic, satirist, political activist, peace activist, and an anti-establishment, anti-war, anti-capitalist anti-monarchist and anti-power elite protester.