Robin Clarke an American actor, in addition to his Dallas episode appearance, Robin has also made guest appearances on such TV shows as Police Woman, The Six Million Dollar Man, Hart to Hart. the short-lived NBC-TV series Mrs. Columbo and Columbo as well. He has also made noted appearances in the films The Formula (1980), Horror Planet (aka Inseminoid) (1981), Boxoffice (1982) and White Wolves III: Cry of the White Wolf (2000).