Andrew Rannells to Temporarily Star in Broadway's 'Hamilton'

Andrew Rannells
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Andrew Rannells attends 'The Leftovers' premiere at NYU Skirball Center on June 23, 2014 in New York City.

Andrew Rannells has a new gig — and it's a royal one.

The Tony Award-nominated star of The Book of Mormon on Broadway and HBO's Girls will temporarily replace Jonathan Groff as King George III in Hamilton on Broadway.

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Rannells, who replaced Neil Patrick Harris in the title role of the show Hedwig and the Angry Inch last summer, will step into Hamilton from Oct. 27- Nov. 29 and Groff returns Dec. 1.

Written by Lin-Manuel Miranda, the musical about Founding Father Alexander Hamilton tells the true story of an orphan immigrant from the Caribbean who rises to the highest ranks of American society, told by a young African-American and Latino cast.

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Rannells, who co-stared this fall in The Intern with Robert De Niro and Anne Hathaway, will play a foppish and peevish King George, who sings three songs to his former American colonies like a jilted lover — "You'll be back," he croons. "I will send a fully armed battalion to remind you of my love."

The Hamilton cast album debuted at No. 12 on the on the Billboard 200 chart this week (dated Oct. 17), marking the highest debut for a cast recording since the chart combined its mono and stereo tallies in 1963 and the highest charting cast album since 2011.