Dorothy Parker at Broad Stage

The essentials: When it comes to treading the razor’s edge, performing without a script can terrify even the most seasoned actor. L.A.’s Impro Theatre adds an additional layer of risk by improvising shows in the signature style of a famous playwright, genre or composer — think Shakespeare, Tennessee Williams, Stephen Sondheim or, as in the upcoming shows, the Roaring ’20s of sharp-tongued author Dorothy Parker. A rotating cast will draw on audience suggestions to create three unique performances, with no pre-planning or prepared scenarios.

Why this? Since 1988, Impro Theatre (formerly Los Angeles Theatresports) has honed a narrative style distinct from more familiar sketch comedy formats. This production is directed by Jo McGinley (“Twilight Zone UnScripted”) and Paul Rogan (“Jane Austen UnScripted”). This show an ideal companion piece to “The Dorothy Parker Project,” the dramatized biographical portrait and short stories currently running at Pacific Resident Theatre.

Details: An Impro Theatre production at the Edye at the Broad Stage, 1310 11th St., Santa Monica. 8 p.m. May 18-19, 2 p.m. May 20. $45. (310) 434-3200. thebroadstage.org/impro theatreparker

The 99-Seat Beat appears every Friday. Our reviewers shortlist offerings with an emphasis on smaller venues. Some (but not all) recommendations are shows we’ve seen; other picks are based on the track record of the company, playwright, director or cast. Comprehensive theater listings are posted every Sunday at latimes.com/arts.