Mark Schultz is an American writer and illustrator of books and comics. He is known for the series Xenozoic Tales, which describes a post-apocalyptic world where dinosaurs and other prehistoric creatures coexist with humans and was adapted into an animated series and video game. Schultz's other notable works include various Aliens comic book mini-series published by Dark Horse and a four-year run on the DC Comics series Superman: The Man of Steel, as well as a run on Prince Valiant.

Al Williamson (March 21, 1931 – June 12, 2010) was an American cartoonist, comic book artist and illustrator specializing in adventure, Western, science fiction and fantasy. His well regarded run on Flash Gordon in the mid-1960s earned a “Best Comic Book Cartoonist” award from the National Cartoonists Society, and Williamson drew the daily comic strip Secret Agent Corrigan from 1967 until 1980.