A new cast will also be announced in an effort to add more diversity to the fledgling horror series, according to The Hollywood Reporter.
The out producer known for his many hit superhero shows will adapt the best-selling psychological thriller in a 10-episode television series.
The stage and film actor won a Tony Award in 1991 for his role in Neil Simon's Lost in Yonkers.
The beloved Will & Grace star and outspoken LGBTQ advocate will accept the GLAAD Excellence in Media Award on May 6.
DeGeneres will reflect back on her famous Ellen coming out episode, which originally aired on April 30, 1997.
New images of the late actress reprising her role as General Leia Organa were revealed during the Star Wars 40th celebration in Orlando, Florida.
"Getting comfortable with your sexuality is a process. It's going to be ok. I wish I'd known that sooner," Purser explained in a series of tweets.