The SLOHS Performing Arts Department of Improvisational Theatre (or Department of Improv), formerly known as the SLOHS Improv Team (2003–2021) and British Humor (?–2003), is an executive department of SLOHS Performing Arts. It is responsible for hosting the organization's regular live improv shows. The Improv Team, before its incorporation into SLOHS Performing Arts, was a long-established group on campus. The club ratified the Constitution of SLOHS Performing Arts, becoming the reformed Department of Classics, on April 27, 2021.
The department is administered by the SLOHS Performing Arts commissioners of improv, who are member of the Company of SLOHS Performing Arts. The current commissioners of improv, Aubrey O'Leary and Zoë Hendriks, took office on September 17, 2022.