Sestero is a surname most commonly associated with Greg Sestero, an American actor, producer, and author. He gained fame for his role in the cult film The Room, directed by Tommy Wiseau. The film, released in 2003, is known for its unconventional storytelling and has garnered a dedicated fanbase over the years. In addition to acting, Sestero wrote a memoir titled The Disaster Artist, which details the making of The Room and his experiences with Wiseau. The book was later adapted into a film of the same name, directed by James Franco, further popularizing the story behind the infamous movie.