Marie Severin was an American comics artist and colorist best known for her work for Marvel Comics and the 1950s' EC Comics. She is an inductee of the Will Eisner Comics Hall of Fame and the Harvey Awards Hall of Fame.
Marie Severin by Michael Netzer
Not Brand Echh #10 (Oct. 1968). Cover art by Marie Severin.
In comics, a colorist is responsible for adding color to black-and-white line art. For most of the 20th century this was done using brushes and dyes which were then used as guides to produce the printing plates. Since the late 20th century it is most often done using digital media, with printing separations produced electronically.
Page from Unknown World #1 (1952)
The page after coloring