Mark McEwan is an American-born Canadian celebrity chef based in Toronto, Ontario. He was head judge on Food Network Canada's Top Chef Canada. McEwan had his own television show on Food Network Canada entitled The Heat, which followed his catering team from North 44 Caters as they served the influential and elite. Since 1990, Mark has been an ambassador for Second Harvest in Toronto, helping to spread the word about food rescue and hunger relief. He also has partnered with the and sits on the board of his alma mater, with George Brown Foundation.