Mads Mikkelsen did all of his own cooking on screen, including the egg trick. He was trained by the show's food stylist, Janice Poon.
Hugh Dancy actually recommended Mads Mikkelsen for the role of Hannibal Lecter, as the two actors had become friends during filming of King Arthur (2004).
Laurence Fishburne, who plays Jack Crawford, and Gina Torres, who plays Crawford's wife Bella, were married to each other in real life. They have since separated.
In the series Hugh Dancy plays Will Graham opposite Mads Mikkelsen's Hannibal Lecter. In the film King Arthur (2004), almost ten years before Hannibal, Dancy's character says: "I don't kill for pleasure. Unlike some." Mads responds with: "Well, you should try it someday. You might get a taste for it."