The improvisational comedy of Thomas Middleditch and Ben Schwartz offers no space for performance security, relying entirely on their synchronized wits to conjure amusing riffs from the capricious prompts of the crowd. Eschewing such comedy crutches as visual projection, interactive backdrops, and oversized props, the duo put their creativity to the test night after night, making each performance is unique. In fact, the only predictable aspect of a Middleditch and Schwartz performance is the procession of peculiar characters (alternatively portrayed by the pair) populating a series of absurd scenarios amid a nonstop volley of hilarity. The duo’s ability to inhabit eccentric personas won’t come as a surprise to those who know the two from their television roles: Middleditch found acclaim portraying Richard Hendricks, the socially inept software designer on HBO’s Silicon Valley, and Schwartz became a fan favorite for playing incompetent schemer Jean-Ralphio Saperstein on Parks and Recreation. Even these breakout roles barely hint at comic inspiration sure to materialize when these two charismatic performers unleash their improvisational skills at the State Theatre.