Armisen's subsequent television work, such as some "memorable Andy Kaufman–esque appearances" on Late Night with Conan O'Brien, as well as work for Crank Yankers and Adult Swim, led to a role in 2002 as a featured player in the cast of Saturday Night Live. In the 2004 season, he was promoted to repertory cast member status.
Armisen joined the cast of Saturday Night Live in 2002. He was promoted to a repertory player in 2004. After 11 years as a cast member, he decided to leave the show. At the time of his 2013 departure from the show, Armisen was the third-longest tenured cast member (behind Seth Meyers and Darrell Hammond), and he appeared in the second-most number of sketches (856) of any cast member. Since then, Armisen has come back for multiple cameo appearances on the show, including when he hosted the season 41 finale on May 21, 2016, with musical guest Courtney Barnett.