JOHN OSTRANDER

According to Wikipedia: "John Ostrander (born April 20, 1949[1]) 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 (2016) and The Suicide Squad (2021) are based on."