Jonathan Drew Groff (born March 26, 1985) is an American actor and singer known for his performances on stage, screen, and television. Groff is the recipient of a Grammy Award and has been nominated for two Tony Awards, two Drama League Awards, and a Drama Desk Award and an Emmy Award.

Groff rose to prominence in 2006 for his performance in the lead role of Melchior Gabor in the original Broadway production of Spring Awakening, for which he received widespread acclaim and was nominated for a 2007 Tony Award for Best Actor in a Leading Role in a Musical, becoming one of the youngest nominees for the award, at age 22. He returned to Broadway in 2015 to play the role of King George III of the United Kingdom in Hamilton, a performance for which he earned a nomination for a 2016 Tony Award for Best Actor in a Featured Role in a Musical. He also appeared on the cast recording, for which he received a 2016 Grammy Award for Best Musical Theater Album.

Groff is also known for his roles in television and film. He was a recurring guest star in the Fox musical-comedy series Glee (2009–2015) as Jesse St. James, and he was featured on four of its soundtrack albums, also making a special appearance in the concert tour Glee Live! In Concert! in 2010. He voiced the roles of Kristoff and Sven in the Disney animated films Frozen (2013) and Frozen II (2019), two of the highest-grossing films of all time. Groff starred as Patrick Murray in the HBO comedy-drama series Looking (2014–2015), often credited as one of the network’s first gay TV series, and its subsequent series finale television film, Looking: The Movie (2016). Groff is also known for his starring role as FBI Special Agent Holden Ford in the critically-acclaimed Netflix period crime drama Mindhunter (2017–2019), produced by David Fincher. In 2021, he received a nomination for a Primetime Emmy Award for Outstanding Actor in a Supporting Role in a Limited Series or Movie for his performance in the Disney+ live stage recording of Hamilton which was released in 2020. In 2021, he guest starred on Invincible.

Groff stars in 2021’s The Matrix Resurrections. Other upcoming projects include Molly and the Moon, and Lost Ollie.