Gemignani succeeds six-time Tony nominee Danny Burstein, who joined the cast for a limited engagement in January and played his final performance April 28. (Burstein is set to star in Broadway’s upcoming Moulin Rouge!.)
Benanti recently extended her time as Eliza Doolittle through July 7, Hadden-Paton is scheduled to play Henry Higgins through July 6.
Most recently seen Off-Broadway as the musical director of Fiasco Theatre’s Merrily We Roll Along at Roundabout, Gemignani returns to the Broadway stage having starred in last season’s Carousel as Enoch Snow, which earned him a Tony nomination. He has also previously appeared in Violet, Chicago, Les Misérables, Sweeney Todd, Assassins, The People in the Picture, and Sunday in the Park With George.