Who played the part of Major Jack Celliers in the film 'Merry Christmas, Mr. Lawrence'?

Merry Christmas, Mr. Lawrence is a 1983 British-Japanese drama film directed by Nagisa Oshima, produced by Jeremy Thomas and starring David Bowie, Tom Conti, Ryuichi Sakamoto, Takeshi Kitano and Jack Thompson.

The film was entered into the 1983 Cannes Film Festival in competition for the Palme d'Or. Sakamoto's score also won the film a BAFTA Award for Best Film Music.

The film deals with the relationships among four men in a Japanese prisoner of war camp during the Second World War. Major Jack Celliers (Bowie), a rebellious South African with a guilty secret from his youth; Captain Yonoi (Sakamoto), the young camp commandant; Lieutenant Colonel John Lawrence (Conti), a British officer who has lived in Japan and speaks Japanese fluently; and Sergeant Hara (Takeshi), who is seemingly brutal and yet humane in some ways and with whom Lawrence develops a peculiar friendship.