André Morell André Morell ( sometimes credited as Andre Morell ; born André Mesritz on 20 August 1909 in London , England , UK ; died 28 November 1978 in London ) played Marshal Tavannes in the " Doctor Who " television story " The Massacre of St Bartholomew ' s Eve " . He appeared in a wide range of film and television productions from the 1930s right up until the year of his death . His initial career was in the theatre at the Old Vic , and he appeared in a number of major Shakespearean roles such as " Hamlet " . He is probably best known in television for his role as Professor Bernard Quatermass in the 1958 BBC Television serial " Quatermass and the Pit " and in the cinema for playing Dr . Watson alongside Peter Cushing ' s Sherlock Holmes in Hammer Films ' 1959 adaptation of " The Hound of the Baskervilles " , the first Sherlock Holmes film to be made in colour . He was a television actor from the earliest days of the medium . He appeared in several productions on the BBC ' s service in the 1930s . These included adaptations , such as " Pride and Prejudice " ( in 1938 , as Mr Wickham ) and " Cyrano de Bergerac " ( also 1938 , as Le Bret ) . After the resumption of the BBC ' s television service in 1946 following its suspension during the Second World War , Morell continued to appear in high - profile productions in the increasingly mass medium : he starred in an adaptation of " Othello " ( 1950 ) and later gained his two most memorable television roles for the writer / director team of Nigel Kneale and Rudolph Cartier . These were as O ' Brien in their 1954 adaptation of George Orwell ' s " Nineteen Eighty - Four " ( starring opposite Peter Cushing for the first time ) and the leading role in the science - fiction serial " Quatermass and the Pit " ( 1958 - 1959 ) . He was the third , and generally best - received , actor to play the role of the famous fictional scientist on television . " Pit " would itself influence several " Doctor Who " stories , most notably " The Dæmons " . Of all the actors to play Quatermass , Morell was the only one to appear in " Doctor Who " on television . In film , aside from his role as Watson in " The Hound of Baskervilles " , he appeared in other high - profile and famous films . He had parts in " The Bridge on the River Kwai " ( 1957 , as Colonel Green ) , " Ben - Hur " ( 1959 , as Sextus ) , " Barry Lyndon " ( 1975 , as Lord Wendover ) and " The Slipper and the Rose " ( 1976 , as the bride ' s father ) . In the 1960s , he appeared in Hammer horror films such as " She " ( 1965 , another appearance alongside Peter Cushing ) , " The Plague of the Zombies " ( 1966 ) , " The Mummy ' s Shroud " ( 1967 ) and " The Vengeance of She " ( 1968 ) . His last television work was the serial " The Life of Shakespeare " in 1978 , playing Edward Alleyn . The animated film version of " The Lord of the Rings " , in which he voiced the character of Elrond , was released the same year , but his final film work was not seen until the year after his death . This was as the judge in the 1979 film " The First Great Train Robbery " , which was written and directed by Michael Crichton and starred Sean Connery and Donald Sutherland . From 1959 until his death , Morell was married to the actress Joan Greenwood , some twelve years his junior . They had one child , Jason . He is also an actor and has appeared in films such as " Mrs . Brown " ( 1997 , as Frederick Stanley , 16th Earl of Derby ) and " Wilde " ( also 1997 , as Ernest Dowson ) . The younger Morell played the Vicar in " The Next Doctor " .