Nolan will succeed current actor Arthur Darvill ("Dr. Who") as Guy on Dec. 17. Darvill, who joined the cast of Once last spring, will depart the Broadway company Dec. 15.
Nolan joins British actress Joanna Christie, who stars as Girl. The cast also features Adam Wesley Brown, Laurel Griggs, David Patrick Kelly, Jillian Lebling, Katrina Lenk, Brandon McGibbon, Anne L. Nathan, Andy Taylor, Carlos Valdes, Erikka Walsh, Paul Whitty and J. Michael Zygo.
Once is directed by John Tiffany (Black Watch), with movement by Steven Hoggett (Black Watch, American Idiot) and music supervision and orchestrations by Martin Lowe (Mamma Mia!). It won eight Tony Awards including Best Musical. Once premiered on Broadway in March 2012 at the Bernard B. Jacobs Theatre.
Once continues its West End run at the Phoenix Theatre, where it opened in April. The musical launched a U.S. national tour earlier this fall.
Visit oncemusical.com for more information.