Question: Fregattenkapitän Heinrich Lehmann-Willenbrock was a submarine commander in Germany during World War II and the subject of the mini-series called "Das Boot" when he was portrayed by which actor? 
Sentence (from "Hans Heinrich Hass"): Hass was later the basis for one of the characters in the novel "Das Boot" by author Lothar-Günther Buchheim.
Relevant evidence: No