Pernell Roberts has been acting since the early 1950's starting with the University of Maryland and moving on to the Arena Stage in Washington, D.C. Mr. Roberts acted on Broadway in various plays and then went to California circa 1957. His first movie roll was in "Desire Under the Elms." Ride Lonesome was by far his best performance. This list is not exclusive to Adam on Bonanza or Trapper John, M.D.