Final answer:
The playwright responsible for bringing 'The Beauty Queen of Leenane,' 'The Pillowman,' and 'The Cripple of Inishmaan' to Broadway in the past ten years is Martin McDonagh.
Step-by-step explanation:
The playwright who wrote The Beauty Queen of Leenane, The Pillowman, and The Cripple of Inishmaan, all of which have been brought to Broadway in the past ten years, is Martin McDonagh. McDonagh is renowned for his dark humor and sharp wit, much like other famous playwrights such as Tennessee Williams and George Bernard Shaw. While each playwright has their own unique style and thematic concerns, they all share the distinction of having created works that left a significant impact on the world of theatre.