Best known for his work on the NBC series "Night Court," Larroquette will portray World Wide Wicket Company president J.B. Biggley.
As previously reported, Radcliffe ("Harry Potter," Equus) will star as ambitious window washer J. Pierrepont Finch. Additional casting will be announced shortly.
Directed and choreographed by Tony Award winner Rob Ashford (Promises, Promises), How to Succeed will begin previews Feb. 26, 2011, at the Al Hirschfeld Theatre. An official opening has been set for March 27, 2011.
Broadway Across America (John Gore, Thomas B. McGrath, Beth Williams), Craig Zadan, Neil Meron, Joseph Smith, Michael McCabe and Candy Spelling produce the 50th anniversary production.
How to Succeed… follows a young window washer, who with the help of the titular book, rises to the top of the World Wide Wickets Company in New York City.
Larroquette last appeared on the New York stage in Oliver Parker! this past season. His stage credits also include Oscar and Felix: A New Look At The Odd Couple at the Geffen Playhouse and John Godber's Happy Jack. He earned an Emmy Award for portraying the sexually charged assistant district attorney Dan Fielding on "Night Court."
Best known for starring in the title role of the "Harry Potter" film franchise, Radcliffe made his Broadway debt as Alan Strang in a revival of Peter Shaffer's Equus. His other screen credits include "Extras," "My Boy Jack" and "December Boys."
Rob Ashford earned a 2002 Best Choreography Tony Award for Thoroughly Modern Millie. He has been Tony-nominated for Cry-Baby, Curtains and The Wedding Singer. He earned acclaim for directing the Donmar Warehouse productions of A Streetcar Named Desire and Parade.