Mark Addy Johnson (born 14 January 1964), known professionally as Mark Addy, is an English actor. He is known for portraying Detective Constable Gary Boyle in the British sitcom The Thin Blue Line, Dave in the film The Full Monty, father Bill Miller in the American sitcom Still Standing, King Robert Baratheon in the HBO medieval fantasy series Game of Thrones, Fred Flintstone in The Flintstones in Viva Rock Vegas, and Hercules in the British fantasy drama series Atlantis.