What job did actor Clark Johnson and screenwriter Michel Boisrond both have in common?
Clark Johnson Clark Johnson (born September 10, 1954), sometimes credited as Clark "Slappy" Jackson, Clarque Johnson, and J. Clark Johnson, is an American actor and director who has worked in both television and film.
Russell Johnson Russell David Johnson (November 10, 1924 – January 16, 2014) was an American television and film actor, best known for his role as "the Professor" on the CBS television sitcom "Gilligan's Island".