Improvisational theatre, often called improvisation or improv, is the form of theatre, often comedy, in which most or all of what is performed is unplanned or unscripted, created spontaneously by the performers. In its purest form, the dialogue, action, story, and characters are created collaboratively by the players as the improvisation unfolds in present time, without use of an already prepared, written script.
Improvisation, often shortened to improv, is the activity of making or doing something not planned beforehand, using whatever can be found. The origin of the word itself is in the Latin "improvisus", which literally means un-foreseen. Improvisation in the performing arts is a very spontaneous performance without specific or scripted preparation. The skills of improvisation can apply to many different faculties across all artistic, scientific, physical, cognitive, academic, and non-academic disciplines; see Applied improvisation.
The Compass Players was an improvisational theatre revue active from 1955 to 1958 in Chicago and St. Louis. Founded by David Shepherd and Paul Sills, it is considered to be the first improvisational theater in the United States.
The Upright Citizens Brigade (UCB) is an improvisational and sketch comedy group that emerged from Chicago's ImprovOlympic in 1990. The original incarnation of the group consisted of Amy Poehler, Matthew Walsh, Matt Besser, Ian Roberts, Adam McKay, Rick Roman, Horatio Sanz and Drew Franklin. Other early members included Neil Flynn, Armando Diaz, Ali Farahnakian and Rich Fulcher.
Viola Spolin was an American theatre academic, educator and acting coach. She is considered an important innovator in 20th century American theater for creating directorial techniques to help actors to be focused in the present moment and to find choices improvisationally, as if in real life. These acting exercises she later called Theater Games and formed the first body of work that enabled other directors and actors to create improvisational theater. Her book Improvisation for the Theater, which published these techniques, includes her philosophy and her teaching and coaching methods, and is considered the "bible of improvisational theater". Spolin's contributions were seminal to the improvisational theater movement in the U.S. She is considered to be the mother of Improvisational theater. Her work has influenced American theater, television and film by providing new tools and techniques that are now used by actors, directors and writers.
The Brave New Workshop (BNW), based in Minneapolis, Minnesota was founded by Dudley Riggs in 1958 and is the longest running sketch and improvisational comedy theater in the US. BNW continues the tradition, of writing, producing, and performing as a Resident Theatre of Hennepin Theatre Trust.
The Wellington Improvisation Troupe (WIT) is a not-for-profit, community-based improvisational theatre group in Wellington, New Zealand. It is run by a committee elected by and from its forty to sixty active members. WIT performs both long and short-form improvisation.
David Gwynne Shepherd was an American producer, director, and actor noted for his innovative work in improvisational theatre. He founded and/or co-founded the Playwrights Theatre Club, The Compass Players, the Canadian Improv Games, and the ImprovOlympic.
Theatre Strike Force is the University of Florida's premier improv and sketch comedy troupe. The group also goes by TSF. The style of improv performed by Theatre Strike Force is a combination long form and short form. They both teach and perform improvisational comedy. They have six house teams which include both forms of improv as well as a sketch team. There are four long form house teams which are cast every semester and usually have six to eight members. The TSF Short Form Team is cast every semester as well and usually has fifteen to nineteen members. TSF Sketch is the final house team and usually has twelve to sixteen members, cast each semester.
Oui Be Negroes is an African-American improvisational sketch comedy ensemble, founded by Artistic Director Shaun Landry and Director Hans Summers. They worked together for many years in Chicago with the Underground Theatre Conspiracy, and had proposed the idea of an African-American-driven sketch and improvisational comedy troupe, which would be geared specifically toward social and political humor.
Philly Improv Theater, or PHIT, is a Philadelphia, Pennsylvania comedy theater which formerly presented shows at The Adrienne Theatre in Center City Philadelphia. The theater currently operates a training center with programs in improv comedy, sketch comedy and stand-up comedy. PHIT's most notable alumnus is stand-up comedian Kent Haines, who was the 2008 winner of the Philly's Phunniest contest at Helium Comedy Club and has appeared on public radio show The Sound of Young America and Season 4 of Comedy Central's program Live at Gotham. In addition to Haines, other comedians from Philadelphia who appeared on stage at PHIT have gone on to perform at major comedy venues in cities like New York and Los Angeles, founded their own theatre companies, and appeared in touring productions for The Second City.
The Immediate Gratification Players (IGP) are a collegiate improvisational comedy troupe based out of Harvard College. They specialize in long form, free-form improvisation and are recognized as one of the top college troupes in the nation.
Fawad Siddiqui is an American actor, improvisational comedian, journalist and cartoonist.
The Committee was a San Francisco-based improvisational comedy group founded by Alan Myerson and Jessica Myerson. The Myersons were both alums of The Second City in Chicago. The Committee opened April 10, 1963 at 622 Broadway in a 300-seat Cabaret theater that used to be an indoor bocce ball court in San Francisco's North Beach.
The Purple Crayon of Yale, or the Purple Crayon, is an improvisational theater group at Yale University in New Haven, Connecticut, United States. The group specializes in longform improv, such as the Harold. The Purple Crayon is Yale's second-oldest improv group, after the Ex!t Players, and the oldest collegiate longform group in the country. The Purple Crayon currently consists of twelve members, and is directed by Noam Scully '25 and Amara Neal '26.
Howard Alk was an American filmmaker based in Chicago, Illinois, and an original co-founder of The Second City theater troupe. In the 1960s he began to work in film with the Chicago Film Group, filming and directing documentaries, completing American Revolution 2 (1969) and The Murder of Fred Hampton (1971). He also collaborated for years with singer/songwriter Bob Dylan, producing films with him through 1981.
The Peoples Improv Theater (PIT), also known as the PIT, is a comedy theater and training center in New York City, founded by comedian Ali Farahnakian in 2002. Shows combine improvisational comedy, sketch comedy, stand-up, theater, and variety. Each show is hosted by a combination of "house teams" of comedians hired by PIT and by outside comedians.
Chicago City Limits (CCL) is an improvisational theatre company in New York City.
Bovine Metropolis Theater was the first dedicated improvisational performance and improvisational comedy theater in the Denver Metro Area. It is located at 1527 Champa Street, Denver, Colorado.
