The Tony nominee has played the role of King George III in the blockbuster musical since it opened on the Great White Way last summer (15), but he will be giving up the crown on 9 April (16).

Groff is departing to film Fincher's new crime series Mindhunter, based on the 1996 nonfiction book Mind Hunter: Inside the FBI’s Elite Serial Crime Unit.

According to Deadline, Mindhunter centres on a FBI agent, played by Holt MCCallany, who tracks down some of the most notorious serial killers and rapists.

Groff is set to play a fellow investigator, while Fringe alum Anna Torv portrays a psychologist.

Fincher will direct the pilot and produce alongside Charlize Theron, who optioned the book in 2011.

Groff will be replaced onstage by Rory O'Malley, whose bid to return to Broadway in Steve Jobs/Bill Gates musical Nerds this season failed after a major financier dropped out.

He was last seen on Broadway in the original cast of Book of Mormon alongside Andrew Rannells, who ironically stepped in as King George last autumn (15), when Groff briefly left the show to film the movie for his TV series Looking.

O'Malley will start his reign on 11 April (16).