Formerly a  lawyer with the firm WeirFoulds LLP, Mr. McKellar is known for the many performing artists and arts organizations he has advised, counseled and supported. In addition to being Chair of the Ontario Cultural Attractions Fund, he is a former Chair of the Toronto Arts Council and is now Vice Chairman Ontario Arts Foundation, Chairman of the Young Centre for the Performing Arts, an advisor to the Randolph Academy for the Performing Arts, and a board member of Tarragon Theatre, and the Off-Centre Music Salon. He has, alone or with others, produced shows at ArtWorld Theatre, Blyth Centre for the Arts, The St. Lawrence Centre for the Arts, The Princess of Wales Theatre, The Wintergarden Theater, The National Arts Centre, The Manitoba Theatre Centre and the Kennedy Centre in Washington and has several other theatrical projects now in development. He is a past president of the Arts and Letters Club of Toronto and a past member of the Canada Council for the Arts Board of Directors.