Brian Stack (comedian)

Stack continued his work on O'Brien's TBS series, Conan. His last episode aired on April 2, 2015, with Stack in a sketch as The Interrupter where he and his character bade farewell to the series.

Stack played a cop in "First Date", the April 4, 2013 second season episode of the FOX sitcom New Girl. That same year, he appeared as Ted in the TV series Parks and Recreation, a role that recurred into 2014.

On October 13, 2013, Stack played Don in the Aqua Teen Hunger Force season ten, episode season "Piranha Germs". On July 26, 2015, he played Mappy the Map in the season eleven episode "Knapsack!"

In 2012 Stack provided the voice for the Airplane Pilot in Hotel Transylvania.

Stack remained with O'Brien after O'Brien's move to The Tonight Show in 2009. Stack played many recurring characters on the show, most notably those clad in anachronistic or elaborate outfits, and was known for playing many characters with long beards and mustaches, such as God, Zeus, Socrates, Gandalf, Dumbledore, and The Interrupter. Jeff Loveness of Jimmy Kimmel Live has observed of Stack's characters that there was "such a sadness to each character, but they would not acknowledge their sadness", an assessment that Stack agrees with. Stack has further explained that, "My favorite kind of comedy on the late-night has always been the non-topical silly stuff where it's not really at anybody's expense. My least favorite kind of joke is a celebrity joke, because it tends to be very familiar or sometimes very mean, and if it's not mean it doesn't even work, usually...But my favorite kind of comedy on late night is at no one's expense but the character that's involved in the sketch where you're not really going after anybody." Stack made occasional appearances on The Tonight Show, such as when he played an NRA spokesman who intimates violence to accomplish his agenda.

Stack played Mark, an employee of the Buffalo branch who becomes angry when learning the branch is being shut down, in "Company Picnic", the May 14, 2009 fifth season finale, and 100th episode, of the American version of The Office.

Stack co-starred as "The World's Tallest Nebraskan" in the Comedy Central animated series Freak Show in 2006.

In 2000, Stack played "Whiskers" in "Western Day", the December 6, 2000 pilot episode of Robert Smigel's TV series TV Funhouse.

He provided voices for numerous characters in the video games Deer Avenger (1998) and Deer Avenger 2: Deer in the City (1999), which were written by Stack's fellow Late Night writer/actor Brian McCann, and which co-starred McCann, Tina Fey, Jon Glaser, and Amy Poehler.

Stack became a sketch writer on Late Night with Conan O'Brien in 1997, and served as a writer and actor on the show. The first sketch he wrote for the show was the inaugural iteration of the running gag "Andy’s Little Sister, Stacy," in which Stack's former Chicago improv colleague Amy Poehler portrayed the 13-year-old younger sibling of O'Brien's sidekick, Andy Richter, whose unrequited crush on O'Brien manifests in a range of emotion that runs "from adorable bashfulness to volcanic, homicidal rage." Stack would later say of Poehler in a 2021 Washington Post interview, "I’ve always been in awe of her incredible talent, but seeing her, Conan and Andy [Richter] have so much fun in that sketch is an especially wonderful memory for me and I’ll never forget it."

Stack played "Special Agent in Charge" in the 1997 movie Spaceman.

Brian Stack (born August 18, 1964) is an American actor, comedian, and writer best known for his sketch comedy work. He worked on all three late-night talk shows hosted by Conan O'Brien including Late Night with Conan O'Brien and The Tonight Show with Conan O'Brien on NBC, and Conan on TBS. Stack left Conan in April 2015 to join the writing staff of the CBS series The Late Show with Stephen Colbert.