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 Pumpkinhead "Emerald City". Jack Pumpkinhead appears in the animated series "Dorothy and the Wizard of Oz" voiced by JP Karliak. First appearing in "Halloween Heist," Jack was created by Wilhelmina to give Dorothy and her friends a scare on Halloween. However, he is too simple-minded and friendly to be scary. Jack Pumpkinhead Jack Pumpkinhead is a fictional character from the Land of Oz and appears in several of the classic children's series of Oz books by American author L. Frank Baum. Jack first appeared as a main character in the second Oz book by Baum "The Marvelous Land of Oz" (1904).