The ImprovBoston Mainstage is the cornerstone of professional comedic talent at ImprovBoston. Showcasing our signature style of improvisation, Mainstage blends fast-paced games, hilarious scenes, skillful storytelling, memorable music and 100% voluntary audience participation into a never-before-seen show. No rules. No boundaries. Just spectacular comedy delivered by an elite cast of the best improvisers in New England.