Steve Englehart (/ˈɛŋɡəlhɑːrt/; born April 22, 1947) is an American writer of comic books and novels. He is best known for his work at Marvel Comics and DC Comics in the 1970s and 1980s. His pseudonyms have included John Harkness and Cliff Garnett.
Description above from the Wikipedia article Steve Englehart, licensed under CC-BY-SA, full list of contributors on Wikipedia.