Richard H. Blake and Quinn VanAntwerp will play their final performances in those roles September 18.
Dromard previously played DeVito on Broadway in December 2015. Seeley played Gaudio in the musical's national tour.
When it closes, Jersey Boys will have played 4,642 performances at the August Wilson Theatre (245 W. 52nd Street). Dancing with the Stars champion Mark Ballas will be the final actor to take on the role of Frankie Valli, making his Broadway debut October 18.Jersey Boys, according to press notes, “is the behind-the-music story of Frankie Valli and The Four Seasons. They were just four guys from Jersey, until they sang their very first note. They had a sound nobody had ever heard… and the radio just couldn’t get enough of. But while their harmonies were perfect on stage, off stage it was a very different story —a story that has made them an international sensation all over again.” The show features all their hits including “Sherry,” “Big Girls Don’t Cry,” “Oh What A Night,” “Walk Like A Man,” “Can’t Take My Eyes Off You” and “Working My Way Back To You.”