From Wikipedia, the free encyclopedia Karl Burnett (born 27 February 1976) is a New Zealand actor best known for his portrayal of Nick Harrison on the long-running New Zealand soap opera, Shortland Street. Burnett was 16 years old when offered the role of Nick Harrison on Shortland Street in 1992. The then Massey High School student had little acting experience, other than high-school drama classes, though after six years of starring on Shortland Street he had a part in the 1998 film When Love ...