Mark Propst is a professional comic book artist. He began his career in 1985 working for AC Comics in the title Femforce. In 1989 he was hired by Marvel Comics to work in the title Web of Spider-Man and one year later, he was hired by Dark Horse Comics as a member of the crew for the Alien vs. Predator series. His first published work for DC Comics was in 1995 in the title Atom Special and later on he would work for a long run in titles like R.E.B.E.L.S. and Lobo.