Broadway

He made his Broadway debut in the 1983 revival of Zorba as Nikos, for which he won the Theatre World Award.^[4]

He played the dual role of a Soldier/Alex and understudied Mandy Patinkin in Stephen Sondheim's Sunday in the Park with George which opened in May 1984. He later took over Patinkin's leading roles of Georges Seurat/George where he played opposite Bernadette Peters in September of that year and played the role until April 1985.^[5]

He received a Tony Award nomination and won a Drama Desk Award for his performance as Cinderella's Prince and the Wolf in Sondheim's Into the Woods (1987).^[6] It was during this show where he met his wife, Kim Crosby, who played Cinderella.^[7]

In 1990, he starred as Inspector Javert in Les Misérables opposite Craig Schulman as Jean Valjean.^[8]

In 1991, he starred as Dr. Neville Craven in the original Broadway production of The Secret Garden playing opposite Patinkin again along with Daisy Eagan, Alison Fraser and Rebecca Luker.^[9] In 2020, Westenberg directed the same production at Missouri State University, where he served as the head of the Musical Theatre department until joining the Musical Theatre faculty at the University of Colorado Boulder in 2023. ^{[10] [11]}

Other

In 1981, Westenberg played Norman Mushari in Kurt Vonnegut’s God Bless You, Mr. Rosewater at Arena Stage.

In 1994 and 2001, Westenberg starred as Scrooge’s nephew Fred in the musical adaptation of A Christmas Carol in Madison Square Garden.

In 1996, Westenberg was in the US National tour of Funny Girl as Nick Arnstein opposite Debbie Gibson as Fanny Brice. It ended prematurely in November 1996 in Green Bay, Wisconsin.^{[12][13][14][15][16]}

In 2002, Westenberg was in the US and Japan tour of The Full Monty.^[17]

Westenberg has been in several MUNY (St. Louis) productions. He played Henry Higgins in My Fair Lady in 2001 opposite his wife, Kim Crosby, as Eliza Doolittle.^[18]

He played the roles of both Mr. Darling and Captain Hook in the July 2007 St. Louis MUNY production of Peter Pan.^[19] He reprised these roles in a 2009 production in Branson, Missouri, with Cathy Rigby as Peter Pan.^[20] In 2012, he directed a production of Les Misérables at Springfield Little Theatre.

Television and film

Westenberg's film credits include Mr. and Mrs. Bridge and The Ice Storm. He has made guest appearances on Third Watch, Law & Order: Special Victims Unit, and the short-lived series Aliens in the Family. He played Prince Raymond on the soap opera, One Life to Live from 1989-90.^[1]

He reprised his roles of a Soldier/Alex and the Wolf/Cinderella’s Prince in the American Playhouse episodes of Sunday in the Park with George and Into the Woods.

Film

Television