Possible Clues:

• *Orson Welles' role in 'The Third Man'
• *Orson Welles' role in "The Third Man"
• Fugitive racketeer in 'The Third Man'
• Role for Orson Welles in 'The Third Man'
• 61-Across's role in 24-Across
• The third man in The Third Man
• The third man