As one of the stars of Oh, Mary! on Broadway, Bianca Leigh is thrilled to be performing to sold-out crowds and garnering some of the best reviews of her career. Still, shes aware it could very well be a once-in-a-lifetime experience that never happens again.

Its a funny feeling, saying that this is as good as it gets, the actor, who is transgender, told HuffPost. Its odd when its happening in real time. Im not a spring chicken, as my grandmother would say, so Im very lucky this has happened, and I get to do what I want to do for the foreseeable future.

Directed by Sam Pinkleton , Oh, Mary! broke box office records when it opened at New Yorks Lyceum Theatre in July following an off-Broadway engagement earlier this year. On Thursday, the show originally set to close this month formally extended its run through January.

The historical farce depicts first lady Mary Todd Lincoln (played by actor-writer Cole Escola , who uses they/them pronouns) as a booze-swilling, lovesick woman who yearns to be a cabaret performer, and President Abraham Lincoln (Conrad Ricamora ) as a closeted gay man with a predilection for trysts in the Oval Office.

Leighs character, Louise, is Marys chaperone and sole confidante in the White House. As it turns out, Louise is hiding a few secrets of her own beneath her demure, buttoned-up appearance.