A 1998 graduate of Hillsboro High School, Larsen starred in many of its productions, including the title role in Joseph and the Amazing Technicolor Dreamcoat.
He briefly left the production in March 2011 for several weeks to take on the role of Tunny in American Idiot on Broadway, replacing actor Stark Sands.
In 2013, Larsen finished his run with the new musical titled Hands on a Hardbody, which premiered at the La Jolla Playhouse in April.
Later in 2014, Larsen joined the second national tour of The Book of Mormon, playing the role of Elder Kevin Price.
In 2018, Larsen joined the lineup of Under the Streetlamp, a band otherwise consisting of alumni of the Chicago and touring productions of Jersey Boys.