 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 frequent collaborator with comedian and director David Wain and the comedy trio Stella (of which Wain is a member), appearing in the Stella shorts and the 2005 "Stella" TV series, and acting in many of Wain's projects ("Wet Hot American Summer", "", "The Ten", "Role Models", "Childrens Hospital", "Wainy Days") and in Stella member Michael Showalter's "The Baxter".As of season five, Miles is credited as a "consulting producer" on "Arrested Development".