From 1990 - 2005, Langworth appeared in a number of major Broadway musicals, including the closing company of the original production of A Chorus Line, the Tony Award-winning production of Ragtime with Audra McDonald, Marin Mazzie and Brian Stokes Mitchell, and the 2001 revival of Stephen Sondheim's Follies. He was also assistant dance captain of the national tour of the Tony Award-winning musical Thoroughly Modern Millie.
He grew up in Port Chester, NY and graduated from the State University of New York at Geneseo, where he studied communications. He returned to his alma mater to be an associate professor of Dance. Langworth also taught at the State University of New York at New Paltz where he choreographed a production of The Producers and directed 25th Annual Putnam County Spelling Bee.
In 2006, Langworth retired from performing to join the New York-based casting agency, Bernard Telsey Casting, Inc. During this time, the Telsey agency supplied casts for Broadway productions like Rent, The Color Purple, Wicked, Legally Blonde and The Drowsy Chaperone. In a February 26, 2006 article in the New York Times entitled "Far From the Spotlight, the True Powers of Broadway,"  Jesse McKinley named it one of the premier casting agencies in New York. At Telsey, Langworth was responsible for casting Broadway musicals, most notably the first Broadway revival of South Pacific opening at the Lincoln Center Theater in April 2008 and starring Kelli O'Hara, Paulo Szot and Loretta Ables Sayre. Langworth also served as associate choreographer for this production which was awarded seven Tony Awards in 2008 and as dance captain for the national touring company.
In 2009 - 2010, he was associate director to Sheryl Kaller on the off-Broadway and Broadway productions of Geoffrey Nauffts' play Next Fall. The play was nominated for Best Director and Best Play in the 2010 Tony Awards. In 2012, Langworth directed the cabaret performances of Broadway couple Jenny Powers and Matt Cavenaugh, as well as the cabaret debut of Laura Osnes at the Cafe Carlyle in New York City. In the New York Times, Stephen Holden said Langworth's direction "had the fit of a carefully tailored gown for a star stepping onto the red carpet for the first time."
His partner is James Matthew Jones, a leading global public health consultant who served as press secretary to Senator John Kerry (D-MA) and as executive vice president of The Vaccine Fund, a multi-billion dollar charity founded by the Bill & Melinda Gates Foundation.
- Next Fall as associate director (Original, Drama)
- South Pacific as associate choreographer (Revival, Musical)
- On the Twentieth Century (Revival, Special, Musical, Comedy)
- Ragtime (Original, Musical, Drama)
- Follies (Revival, Musical, Drama)
- A Chorus Line (Original, Musical, Drama)
- "Far From the Spotlight, the True Powers of Broadway - New York Times". New York Times. 2006-02-26. Retrieved 2013-10-28.