 The orderly, Warren Cool Coolidge, was also a character played by  the same actor in _"White Shadow, The" (1978)_ (qv). In one episode  we see him wearing his Carver High School varsity letter. In another  episode, when an actor from "Shadow" played a different role, that  actor was mistakenly referred to by his name from "Shadow". The  actor corrected the "mistake" on camera.