Charlie Todd is the founder of Improv Everywhere, producing, directing, performing, and documenting the group's work for over eight years. The group carries The group carries out pranks, which they call "missions" in public places. The stated goal of these missions is to cause scenes of "chaos and joy." Some of the group's missions use hundreds of performers, while other missions utilize only a handful of performers. Importantly, Improv Everywhere has stated that they do not identify their work with the term "flash mob" that is so often spoken about in the media.