A curious group of six people lives above the theater. They are not ordinary tenants, but something like the cast of an eccentric, bohemian sitcom family. They are actors, authors and playwrights whom Ms. O’Hara offered lodging to years ago, and they never left. Mostly in their 60s and 70s now, they include a German man who smokes on the theater’s steps, a woman who wrote a memoir 20 years ago that inspired a television movie, and a man who was homeless before Ms. O’Hara offered him a crawl space above the lighting booth.