Википедия:
Gahan Wilson's cartoons and illustrations are drawn in a playfully grotesque style and have a dark humor that is often compared to the work of The New Yorker cartoonist and Addams Family creator
Charles Addams. But while both feature vampires, cemeteries and other traditional horror elements in their work, Addams' cartoons are gothic, reserved and old-fashioned, while Wilson's work is more contemporary, gross and confrontational, featuring atomic mutants, subway monsters and serial killers. It could be argued that Addams' work was probably meant to be funny without a lot of satirical intent, while Wilson often has a very specific point to make.
Gahan Wilson:
Charles Addams: