Irredeemable Ant-Man, (2006-07)
Ant-Man is the name of several fictional characters appearing in books published by Marvel Comics. Ant-Man was originally the superhero persona of Hank Pym, a brilliant scientist who invented a substance that allowed him to change his size. Hank Pym was created by Stan Lee, Larry Lieber and Jack Kirby and first appeared in Tales to Astonish #27 (Jan. 1962); his first appearance as Ant-Man was in Tales to Astonish #35 (Sept. 1962).
After Pym retired his Ant-Man identity, successors Scott Lang and Eric O'Grady have used Pym's technology to take on the role of Ant-Man.