Rocky Ray Hartberg is an American underground comic and commercial artist residing in Langford, South Dakota.
In the early-1980s, the market for small independent comics flourished driven by the success of Cerebus the Aardvark and the Teenage Mutant Ninja Turtles.
In the mid 1980s, Rocky owned and operated a comic book store Aberdeen's Super City Shopping Mall.
Hartberg continued to work in independent comics for several years but in 1991 turned to commercial art and "colorful and action-packed acrylic paintings."
In 2006, Boardman Books in Tennessee published one of the abandoned stories as Cole Black volume 1, number 6: the Missing Issue