Kubrick never explained the ending to us, or what his intentions were. He didn't intend for it to be a predictable film.

Detroit: Wayne State University Press. After their marriage Dullea Fuller and her children lived in London for several years. In 1965 he guest-starred as Lieutenant Kurt Muller in episode 20 "To Heinie With Love" of 12 O-Clock High (TV series).

Keir Dullea (pron. He has also played roles in films including Bunny Lake is Missing (1965) and Black Christmas (1974).