Conrad Stafford Bain (February 4, 1923 – January 14, 2013) was a Canadian-American actor. His television credits include a leading role as Phillip Drummond in the sitcom Diff'rent Strokes (1978–1986), as Dr. Arthur Harmon on Maude (1972–1978), and as Charlie Ross in Mr. President (1987–1988).
Source : Wikipedia
