Billy Wilder, while writing the script of The Apartment (1960) with his collaborator I.A.L. Diamond, intended the part of Jeff D. Sheldrake to be played by Douglas in the film. Douglas was cast in the role, but unfortunately, passed away before shooting began. Wilder then re-cast the role of the caddish Mr. Sheldrake with Fred MacMurray, who had successfully played against type in Wilder's Double Indemnity (1944).
He turned down the chance to play the part of Harry Brock in Born Yesterday (1950), the successful movie adaptation of the stage play in which he created this role. He found the part had been considerably reduced for the film. The Harry Brock role went to Broderick Crawford.
He was cast in "Twilight Zone" (1959) episode "The Mighty Casey" to play the baseball team manager, a role specifically written for him by Rod Serling, based on his character in Angels in the Outfield (1951). Unfortunately, he died the week the episode was filmed and was replaced by Jack Warden, when refilming became necessary. Interestingly, the script seems not to have been changed as there are several lines that seem to evoke Douglas' manager character. Even Warden seems to be trying to play the character as Douglas would.
Son Adams Douglas (1955 - 2003). Died of heart failure.