Anthony David Miles (born November 8, 1971), best known as A. D. Miles, is an American actor, writer and comedian. He is the head writer for The Tonight Show Starring Jimmy Fallon, which he helped to  develop. As an actor, he is best known as step-dad Gary on the Fallon skit Ew! and as Marty Shonson on Comedy Central's Dog Bites Man. He has also appeared in multiple other Fallon sketches, such as a member of the Ragtime Gals and Mr. Fletcher in the sketches in which Fallon and Justin Timberlake sing songs at their childhood camp. He also appeared in recurring roles on both Law & Order: Criminal Intent and Tim and Eric Awesome Show, Great Job!.