Harry Lebow is a character who makes a one-time appearance in the Season 3 episode titled "Fight Like a Dove".
Harry Lebow, also known as "The Dove", is a well-known Nazi hunter. According to Marella, everybody "in the business" (in the intelligence world) has heard of him. With his daughter Sarah Lebow he had tracked down and brought for trial some 23 Nazi war criminals. At the beginning of the episode he confronts the notorious arm trader Hans Daubert in Paris, saying that he knows he is Helmut Kruger in reality. Kruger doesn't deny it but immediately kills Lebow with a knife.