Mark Simpson, best known as Jock, is a Scottish comic book artist and illustrator. He began his career in 1999 working for Fleetway on the title 2000 AD. He was eventually hired by Vertigo, where he worked on the titles Hellblazer, 100 Bullets and The Losers. His first published work for DC Comics was in 2004 in the title Legends of the Dark Knight. He later worked on Detective Comics, Catwoman and many more.
- Jock's Images as a Penciler
- Jock's Images as an Inker
- Jock's Images as a Cover Artist
- Jock's Images as a Colourist