Miles is a regular on David Wain's internet series Wainy Days and the creator and star of Horrible People, a show on the website My Damn Channel. He served as the head writer on Late Night with Jimmy Fallon, and often appeared in the show's comedy sketches, before moving with Fallon to The Tonight Show.
Miles is a well-known comedian who has been featured in several projects. He is a regular on David Wain's internet series "Wainy Days," stars in his own show "Horrible People" on the website "My Damn Channel," and served as head writer for "Late Night with Jimmy Fallon."  He later joined Fallon at "The Tonight Show."