Laurence Naismith (born Lawrence Johnson; 14 December 1908 – 5 June 1992) was an English actor. He made numerous film and television appearances, including starring roles in the musical films Scrooge (1970) and the children's ghost film The Amazing Mr. Blunden (1972). He also had memorable roles as Captain Edward Smith of the RMS Titanic in A Night to Remember (1958), the First Sea Lord in Sink the Bismarck! (1960), and Argus in Jason and the Argonauts (1963).
Source : Wikipedia