In 2009, Richter went viral along with the rest of Team StarKid after they uploaded their
Harry Potter parody musical,
A Very Potter Musical, to YouTube; Richter played
Ron Weasley. Richter continued to appear in StarKid musicals for the next decade, with his most recent appearance being in the company's 2023 musical
Nerdy Prudes Must Die. Richter also joined the company on their 2011 SPACE tour and 2012 Apocalyptour tour. Richter is also a founding member of entertainment group Tin Can Brothers, alongside Corey Lubowich and Brian Rosenthal, whom he met while attending the
University of Michigan. Richter has a writing credit for the group's 2016 musical
Spies Are Forever, their 2017 play
The Solve It Squad, Richter appeared in Disney Channel's
Jessie as recurring character Officer Petey. In 2013, he and
Darren Criss co-hosted the
Annie Awards. In 2015, Richter played Matt, the titular genie in the
Nickelodeon TV movie
Genie in a Bikini. In October 2023, Richter joined Darren Criss as a special guest for his concert, Darren Criss in Concert, at the
London Palladium. == Personal life ==