Marc Guggenheim (born September 24, 1970) is an American screenwriter, television producer, comic book writer, and novelist. He is best known as the creator of the television series Eli Stone (2008–2009), Arrow (2012–2020), and Legends of Tomorrow (2016–2022), executive producer of the animated series Tales of Arcadia (2016–2021), as well as the writer of the feature films Green Lantern (2011) and Percy Jackson: Sea of Monsters (2013).