Mark Russell is an author, comic book writer, and cartoonist living and toiling in Portland, Oregon. The works he is known for include God Is Disappointed in You, a modern re-telling of the Bible, The Flintstones, Exit Stage Left: The Snagglepuss Chronicles (Winner of the 2019 GLAAD Award for Outstanding Comic), Not All Robots (Winner of the 2022 Eisner Award for Best Humor Comic), and Superman: Space Age, which tells the story of Superman and his loved ones, living against the backdrop of Cold War America. As far as he knows, all his books are still in print.

Jok was born in Buenos Aires (Argentina) in the seventies and has been working as a comic book artist since 1993. His work's been published in the USA (Image, Massive, Heavy Metal, Scholastic, Capstone, Bad Bug, Alien Books, Mad Cave and Deadsky), England (Markosia, David Lloyd´s Aces Weekly), Italy, France (Mosquito, Delcourt), Spain, Germany (Splitter), Denmark, Cyprus, Canada, China, Brazil, Argentina and Uruguay. He runs a studio along with his comrades in arms since 2001, splitting his time amongst several endeavors, including work for hire projects, creator owned books, attending conventions all over the world and not missing a match of his weekly soccer with friends and colleagues.