William Hall

Hall's co-founding of BATS Improv in 1986 placed the organization at the start of San Francisco's long-form and competitive improv infrastructure. The Bay Area Theatresports model, which Hall and the founding ensemble established, brought Theatresports to the West Coast during a period when the format was still primarily associated with Calgary and its international offshoots. BATS became the organizational anchor for Bay Area improv across four subsequent decades, outlasting the closures that affected many regional improv organizations during the same period.

Hall's trajectory from stage and film actor into improv co-founder and eventually corporate training practitioner represents a pattern characteristic of the generation of performers who helped build the applied improv sector in the 1980s and 1990s. The founding of Fratelli Bologna extended his practice from performance and teaching into a professional field that was still emerging as a recognized consulting category during the late 1980s.

The Playbook's publication in 2014 formalized a body of game knowledge accumulated across nearly thirty years at BATS and in international workshops, contributing a documented resource to the improv teaching literature at a time when practical game references for working teachers were relatively sparse.

Hall's teaching at BATS Improv is grounded in the Theatresports tradition he inherited from Keith Johnstone's methodological framework, adapted over decades of practical instruction in San Francisco's long-form improv community. His book The Playbook: Improv Games for Performers (2014) codifies many of the exercises and principles he developed through decades of directing ensembles and teaching students at BATS.

His approach emphasizes the playful, game-based structure that Theatresports made central to competitive and educational improv. The Playbook organizes exercises by purpose: warming up, building ensemble connection, developing character specificity, and extending performance range into long-form and hybrid structures. This taxonomic approach reflects Hall's conviction that improv games are not just warm-up tools but the primary curriculum vehicle through which performers develop the reflexes, habits, and sensibilities that constitute skilled long-form work.

Hall's classroom practice at BATS draws on his background as a classically trained stage actor with a BFA from Boston University. He applies the discipline of theatrical character work to the spontaneous demands of improv, emphasizing that the best unscripted performers are not those who have abandoned technique but those who have internalized it deeply enough to deploy it without thinking. His teaching connects the ensemble-building principles of Johnstone's Theatresports tradition with the character specificity expectations of serious theatrical training, producing a pedagogy that treats fun and rigor as compatible rather than competing values.

Hall's primary legacy is the co-founding of BATS Improv, which has operated continuously since 1986 and remains one of the West Coast's central improvisational training and performance institutions. Through BATS, Hall and his co-founders established a sustained pipeline of improv training in the Bay Area with a school, ensemble program, and performance space that has served the region for nearly four decades.

The Playbook represents a documented contribution to the instructional literature of improvisation: a comprehensive game reference built from nearly thirty years of practice that has circulated widely among improv teachers as a working reference. Patricia Ryan Madson's endorsement from Stanford University placed the book within the overlap between academic and practitioner communities that improv teaching has historically occupied.

Hall's work with Fratelli Bologna contributed to the professionalization of applied improv as a consulting and organizational development practice, working with major corporations before that field had developed the institutional recognition it later acquired.

Hall grew up in Richmond, Virginia, and attended Maggie L. Walker High School, where his interest in drama developed. He went on to Boston University, earning a BFA in drama; his classmates there included Geena Davis.