The role in the show is also expected to include ensemble appearances. Nathan continues to wow audiences as salty sweet Miss Flannery, matron of the typing pool, in Broadway's Thoroughly Modern Millie at the Marquis Theatre.

Miss Flannery, whose hairdo is improbably conical, gets a choice tap break in Millie's "Forget About the Boy" number. She created the role at the La Jolla Playhouse and then on Broadway in 2001-02.

Nathan appeared in Ragtime in Toronto and on Broadway. Ironically, she was an understudy for the radical anarchist Goldman in Ragtime, and played the role many times.

Nathan was also in Off-Broadway's Swingtime Canteen, as well Aspects of Love in Toronto and national tours of Les Misérables and Aspects of Love.

The cast of Stephen Sondheim and John Weidman's Assassins, directed by Joe Mantello for a run starting March 19, 2004, at Studio 54, is expected to include Alexander Gemignani (as John Hinckley), Neil Patrick Harris (as Lee Harvey Oswald and Balladeer), Mario Cantone as Samuel Byck and Michael Cerveris as John Wilkes Booth. Actor Brandon Wardell indicates on his website that he will also be part of the company. Full casting has not been officially announced.

Tickets will be made available Feb. 23, 2004 through (212) 719-1300 or online at www.roundabouttheatre.org. The Studio 54 box office will open for Assassins March 5, 2004.

The musical is a conceptual look at assassins or would-be assassins of American presidents. The musical debuted at Playwrights Horizons in 1990. Paul Gemignani (Into The Woods, Kiss Me, Kate) will serve as musical director. Opening is set for April 22, 2004. This production will mark the musical's Broadway premiere.