George Tuska was an American artist.
Cottonmouth (Cornell Cottonmouth) . Created by writer Len Wein and artist George Tuska , the character first appeared in Power Man # 18 ( June 1974 ) . George Tuska ( April 26 , 1916 -- October 16 , 2009 ) , who early in his career used a variety of pen names including Carl Larson , was an American comic book and newspaper comic strip artist best known for his 1940s work on various Captain Marvel titles and the crime fiction series Crime Does Not Pay , for and his 1960s work illustrating Iron Man and other Marvel Comics characters .