John Ostrander (born April 20, 1949) is an American writer of comic books, including Suicide Squad, Grimjack and Star Wars: Legacy. He co-created the Oracle persona for Barbara Gordon and created the second and modern version of the antihero/supervillain team the Suicide Squad, of which the films Suicide Squad and The Suicide Squad are based on. [source](https://en.wikipedia.org/wiki/John_Ostrander)