Question: What British intelligence officer worked as a double agent for the Soviet Union and was recruited by Arnold Deutsch?

Related documents: [0]  [DOC] Arnold Deutsch (1903–1942?), variously described as Austrian, Czech or Hungarian, was an academic who worked as a Soviet spy, best known for having recruited Kim Philby. Much of his life remains unknown or disputed. [END] 
[1]  [DOC] Harold Adrian Russell "Kim" Philby (1 January 1912 – 11 May 1988) was a high-ranking member of British intelligence who worked as a double agent before defecting to the Soviet Union in 1963. He served as both an NKVD and KGB operative. [END]  
Answer: Kim Philby
Kim Philby