John Ostrander is an American comic book writer known for his influential work in the comic book industry. He gained prominence in the 1980s, particularly for his contributions to DC Comics, where he created and developed characters such as Amanda Waller and the Suicide Squad. His storytelling often blends action with deep character development. Ostrander's writing style is characterized by its focus on themes of morality and the complexities of human nature. In addition to his work on Superhero comics, he has also written for various genres, including science fiction and fantasy, showcasing his versatility as a writer.