Crowley had enjoyed a career renaissance in 2018, when his play was revived for a Broadway debut directed by Joe Mantello and starring Matt Bomer, Jim Parsons, Zachary Quinto, Andrew Rannells, Charlie Carver, Brian Hutchison, Michael Benjamin Washington, Robin de Jesús and Tuc Watkins. A filmed version of that production — which won Crowley a Tony — will air on Netflix later this year.
Born in Vicksburg, Mississippi, on August 21, 1935, Crowley studied acting at the Catholic University of America, gravitating to Hollywood, where he worked as a production assistant while attempting to break into show-biz as a writer.
Befriended by actress Natalie Wood, who encouraged his writing and hired him as her assistant, he wrote "The Boys in the Band" over the course of five weeks in 1967 while housesitting for actress Diana Lynn. It became a controversial smash hit off-Broadway in 1968, then a 1970 feature film.
Later, Crowley was a script supervisor and producer on the TV series "Hart to Hart" (1979-1983). He wrote or adapted such TV movies as "There Must be a Pony" (1986), "People Like Us" (1990), and "Remember" (1993).