Harrison will temporarily replace Christopher Fitzgerald for five weeks in the musical about the witches of Oz, playing the role of Boq through July 25. Wicked marks the young actor's Broadway debut.

Wicked will also welcome two other new actors this summer. On July 20 former pop star Joey McIntyre replaces Norbert Leo Butz as Fiyero, and Urinetown's Jennifer Laura Thompson succeeds Tony winner Kristin Chenoweth as Glinda. Both Butz and Chenoweth will play their final Wicked performances July 18.

Randy Harrison, who received his BFA in theatre from the University of Cincinnati College Conservatory of Music, made his Off-Broadway debut in the MCC production of A Letter from Ethel Kennedy and also starred in the International Fringe Festival production of Deviant. His other theatrical credits include Shopping and Fucking, Violet, Hello Again, Children of Eden and 1776. Harrison can currently be seen as Justin, a gay artist, on Showtime's "Queer as Folk" series.

With a score by Stephen Schwartz, a book by Winnie Holzman and direction by Joe Mantello, Wicked features choreography by Wayne Cilento and plays the Gershwin Theatre, 222 West 51st Street. Tickets are available by calling (212) 307-4100 or by visiting www.ticketmaster.com.