text: Besser has appeared in films such as Walk Hard: The Dewey Cox Story, Martin & Orloff, Year One, Undead or Alive, Drillbit Taylor, and Junebug, in addition to a number of sitcoms including Reno 911!, How I Met Your Mother, New Girl and alongside his wife Danielle Schneider in Community. In 2003, the UCB filmed their first full-length improvised movie, Wild Girls Gone. In early 2010 the film was screened at several indie theaters in the Los Angeles area and is sold for digital download on iTunes and on DVD at the official UCB Theater website. The troupe had also performed their signature brand of longform improv (ASSSSCAT) in a special for the Bravo channel in 2005. In 2008, they released a DVD entitled ASSSSCAT!: Renegade Improv Comedy through Shout! Factory, which features an uncensored improv performance by the troupe and special guests. The DVD also includes deleted scenes and along with other bonus features.
  In 2008, Besser played the part of "Courtney Frenchip", the hippie roommate of David Cross in David's Situation, a pilot made for HBO written by Cross and Bob Odenkirk. The pilot was filmed live on May 9, 2008, but was not picked by HBO as a series. In 2013, he portrayed Edwin Stanton in the "Chicago" episode of Comedy Central's Drunk History. Between 2011 and 2014, he appeared on Parks and Recreation as the morning DJ Crazy Ira.
  Besser and the UCB continue to run a Los Angeles comedy theater in Franklin Village. Besser and the UCB perform several times a week at the Los Angeles theater, in their show ASSSSCAT 3000 every Sunday night.
  Other work
  Besser makes frequent appearances on many podcasts on the Earwolf podcasting network, including Comedy Bang Bang, as well as hosting "The Earwolf Challenge", a reality-competition series where several podcasters compete against each other.
  Besser's Comedy Central pilot This Show Will Get You High aired as a sketch comedy special on October 27, 2010. The show featured video shorts and sketches from Besser and Upright Citizens Brigade Theater comedians John Gemberling, Brett Gelman, Paul Rust, and Betsy Sodaro, and Nathan Barnett.