Groff (Spring Awakening, The Submission, "Glee") has been cast as Craig, an early victim of New York City's AIDS crisis.

Directed by Emmy winner Ryan Murphy ("Eat Pray Love," "Glee," "American Horror Story"), the film is scheduled to begin production in New York City in June for a 2014 debut on HBO. Kramer has adapted his play for the upcoming film.

In recent weeks, Tony Award winner Joe Mantello also joined "The Normal Heart" in the role of Mickey Marcus. Mantello (I'll Eat You Last, Wicked, The Other Place, Other Desert Cities) portrayed Ned Weeks in the 2011 Broadway premiere of Kramer's 1985 play. 

Previous casting includes Academy Award winner Julia Roberts as Dr. Emma Brookner, with Mark Ruffalo as Ned Weeks, Matt Bomer as Felix Turner, Taylor Kitsch as AIDS activist Bruce Niles, and Jim Parsons reprising the role of Tommy Boatwright that he played on Broadway.

Executive produced by Murphy, Jason Blum, Dede Gardner and Dante Di Loreto, "The Normal Heart," according to press notes, "tells the story of the onset of the HIV-AIDS crisis in New York City in the early 1980s, taking an unflinching look at the nation’s sexual politics as gay activists and their allies in the medical community fought to expose the truth about the burgeoning epidemic to a city in denial."

Kramer’s play debuted at New York’s Public Theater in 1985. The 2011 Broadway revival garnered five Tony nominations, winning for Best Revival, Best Featured Actor and Best Featured Actress.