Jack Ryan (character) Jack Ryan (character) John Patrick "Jack" Ryan, Sr. is a fictional character created by author Tom Clancy and featured in his Ryanverse novels, which have consistently topped the New York Times best seller list over 30 years. Since Clancy’s death in 2013, four other authors have continued the Ryan franchise and its other connecting series with the approval of the Clancy family estate: Mark Greaney, Grant Blackwood, Mike Maden, and Marc Cameron. The son of a Baltimore police detective and a nurse, Jack Ryan is a former U.S. Marine and stockbroker who became a history teacher at Boston College in
Jack Crawford (character) Jack Crawford (character) Jack Crawford is a fictional character who appears in the Hannibal Lecter series of books by Thomas Harris, in which Crawford is the Agent-in-Charge of the Behavioral Science Unit of the FBI in Quantico, Virginia. He is modeled after John E. Douglas, who held the same position. Jack Crawford first appears in the novel "Red Dragon", in which he calls upon Will Graham, his former protégé, for assistance in solving the murders being committed by a serial killer dubbed "The Tooth Fairy." Graham, as a profiler, has a reputation for being able to think like the criminals