Who is called 'X'?

Question

Widely remembered for his efforts in achieving the official language of India status for Hindi, which Bharat Ratna is affectionately called Rajarshi?

Answer 1

People. Herbert Marshall had the lead role of agent Ken Thurston/"Mr. X" who took on dangerous cases in a variety of exotic locations. Leon Belasco played Mr. X's comedic sidekick, Pegon Zellschmidt, who always turned up in remote parts of the world because he had a "cousin" there.