There really was an Operation Paperclip to bring former Nazis who had scientific backgrounds to the US. One such man was Werner Von Braun, a Nazi scientist who helped the U.S. get to the Moon. He also happened to be a character two other science fiction shows. The first was in an episode of another TV show about time travel called Timeless. The main characters meet him in Germany and try to destroy a bomb he made. The second is in an alternate reality show called For All Mankind, where the Soviet Union was the first country to land humans on the moon.