Dr. Henry "Hank" Pym is a fictional character appearing in American comic books published by Marvel Comics. Created by editor and plotter Stan Lee, scripter Larry Lieber and penciler Jack Kirby, the character first appeared in Tales to Astonish #27 (Jan. 1962). The character, a scientist that debuted in a standalone science-fiction anthology story, returned several issues later as the original iteration of the superhero Ant-Man with the power to shrink to the size of an insect.