Josh Gondelman returned to Cambridge to perform in the Boston Comedy Arts Festival last year. (Photo: Boston Comedy Arts Festival)

More than 90 improv, sketch and standup comedy acts descend on Central and Harvard squares from Wednesday through Sunday for ImprovBoston’s sixth annual Boston Comedy Arts Festival, including acts from Chicago, New York, Los Angeles andToronto.

“Boston has always been an influential comedy town, and we are thrilled for this festival to showcase the best of the best – both from our home turf and across the nation,” said Tom Spataro, managing director at ImprovBoston and executive producer of the festival.

Festival headliners include Laura Hall (of “Whose Line Is It Anyway” in Los Angeles), the Upright Citizens Brigade Theater (from Los Angeles and New York), silent comedy trio Bri-Ko (from Chicago), the Magnet Theater (from New York), the “You’re The Expert” podcasters (from WBUR-FM), Chris Duffy (ImprovBoston alumnus and New York standup), mind-reader Eric Dittleman (featured on “America’s Got Talent”) and comedian Jonathan Katz (from “Dr. Katz: Professional Therapist”).

In addition to comedy performances at ImprovBoston stages and the Oberon and Brattle theaters in Harvard Square, the festival includes workshops with festival headliners, a talk show with influential comedians from across the nation and industry panel discussions and other events. In addition to mainstream improv, sketch and comedy, the festival celebrates alternative comedy genres including musical improvisation, monologues, laser shows, puppet improv, family-friendly shows and more. A full schedule of shows is here and workshops is here, with ticket prices varying by show.

This post was written from a press release.