Background
Nielsen was born in West Sayville, New New York
Nielsen was born in West Sayville, New New York
He graduated from Palm Bay High School in 1999.
While attending Boston University, he was named the funniest comedian on campus. After continuing to hone his act at The Comedy Studio in Cambridge, Massachusetts, he moved to Los Angeles, California to do a Doctor of Philosophy program at the University of California, Los Angeles, but dropped before completion. Turning to comedy full-time, he got his first big break at the 2007 United States. Comedy Arts Festival in Aspen, Colorado.
Nielsen is best known for his recurring role as Garrett Lambert in the television comedy series Community from 2009 to 2015.
His other acting credits include Bad Milo (2013) and the pilot episode of International Finance Corporation"s Maron. He also starred in Erik the Librarian, a web series created by Brent Forrester.
Nielsen has appeared at Just for Laughs, on Conan, and on Home Box Office Canada"s stand-up series Funny as Hell. On December 10, 2014 he appeared on Ken Reid"s television Guidance Counselor Podcast.