McDermott will be among the cast of both Affair of Honour, which will be presented July 15 and 17, and Hungarian Nights, which will be offered July 24 and 26.

William F. Reed's Affair of Honour, directed by David Glenn Armstrong, will feature McDermott as well as Paul Anthony Stewart, Linda Balgord, Catherine Blades, Summer Broyhill, Josh Adam Davis, James Judy, Rob Lorey, Zal Owen, Robert Sella and Elena Shaddow. Leah Bonvissuto is the associate director; Milton Granger rules the pit.

Honour is described as an "epic historical musical that centers around the relationship between Aaron Burr and Alexander Hamilton, who are both caught up in the maelstrom of the American revolution. Their story, which culminates in the infamous duel, is a rich saga of friendship, contempt, and envy. Their personal stories, and their personal grief, is absolutely mindboggling."

Hungarian Nights, a new musical by Cheryl Kemeny and Mariner Pezza, will feature McDermott and Josefina Scaglione as the ill-fated lovers with Jennifer Sanchez, Ben Davis, Dan Sharkey, Dave Anthony Vogel, Cidalia Alves, Adam Bashian, Joe Longthorne, Elizabeth Markow, Robert Lance Mooney, Christiana Rodi, Benjamin Edward Simpson and Julie Thomas. Armstrong also directs. Musical director is Aaron Gandy; Leah Bonvissuto is the associate director.

"Cheryl and Mariner have merged the worlds of 19th century Hungarian aristocracy, the last fleeting days of traveling gypsy troupes, reincarnated love, and the mystery of the undead into an improbably romantic musical that soars to the highest Carpathian mountaintop," according to press notes. Sean McDermott's Broadway credits include Grease, Falsettos, Miss Saigon and Starlight Express. He was seen Off-Broadway in Boys in the Band and in the national tours of South Pacific and Starlight Express as well as in the international tour of West Side Story. McDermott also joined Barbra Streisand for her international concert tour.

For more information about the New York Musical Theatre Festival, visit nymf.org.