Cher has appeared on Broadway, in Come Back to the Five and Dime, Jimmy Dean, Jimmy Dean, a role she reprised on film. Jennifer Aniston did plays at the Public before her television career took off.
As Pootie said, star casting is often influenced by a desire to appeal to non-regular theatergoers, tourists, business travelers, etc. A production of Three Days of Rain starring Jessica Hecht wouldn't make a cent, although she'd be better in the part than Julia Roberts. If an actor at the peak of his career, like NPH, is willing to devote 16 weeks to a Broadway run, a producer would be crazy not to hire him. Of course, there are instances where star casting backfires -- nobody much cared that Elisabeth Moss was doing The Heidi Chronicles, despite a rave review from the Times.
I've certainly seen many great performances from big celebrities and many regrettable ones. Jake Gyllenhaal has consistently impressed me with his stage chops, for example. Many decisions to cast names are related to money and visibility, but that doesn't mean that it won't result in a good performance.
Updated On: 8/3/15 at 10:35 AM