David Wiley Miller . an American cartoonist whose work is characterized by wry wit and trenchant social satire, is best known for his comic strip Non Sequitur, which he signs Wiley. Non Sequitur is the only cartoon to win National Cartoonists Society Divisional Awards in both the comic strip and comic panel categories, and Miller is the only cartoonist to win an NCS Divisional Award in his first year of syndication.