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.
Tracey Ullman is a British-American actress, comedian, singer, writer, producer, and director. Critics have lauded her ability to shift seamlessly in and out of character and accents, with many dubbing her the "female Peter Sellers". Her earliest mainstream appearances were on British television sketch comedy shows A Kick Up the Eighties and Three of a Kind. After a brief singing career, she appeared as Candice Valentine in Girls on Top with Dawn French and Jennifer Saunders.
The Groundlings is an American improvisational and sketch comedy troupe and school based in Los Angeles, California. The troupe was formed by Gary Austin in 1974 and uses an improv format influenced by Viola Spolin, whose improvisational theater techniques were taught by Del Close and other members of the Second City, located in Chicago and later St. Louis. They used these techniques to produce sketches and improvised scenes. Its name is taken from Shakespeare's Hamlet, Act III, Scene II: "...to split the ears of the groundlings, who for the most part are capable of nothing but inexplicable dumbshows and noise." In 1975 the troupe purchased and moved into its current location on Melrose Avenue.
Alexandrea Borstein is an American actress, comedian, writer, and producer. She is best known for voicing Lois Griffin in the animated comedy series Family Guy (1999–present), for which she won a Primetime Emmy Award. She gained further acclaim for starring as Susie Myerson in the comedy-drama series The Marvelous Mrs. Maisel (2017–2023), which earned her two Primetime Emmy Awards.
Amy Poehler is an American actress and comedian. After studying improv at Chicago's Second City and ImprovOlympic in the early 1990s, Poehler co-founded the improvisational-comedy troupe Upright Citizens Brigade. The group moved to New York City in 1996, where their act became a half-hour sketch-comedy series on Comedy Central in 1998. Along with other members of the comedy group, Poehler is a founder of the Upright Citizens Brigade Theatre.
Rachel Susan Dratch is an American actress and comedian. After she graduated from Dartmouth College, she moved to Chicago to study improvisational theatre at The Second City and ImprovOlympic. Dratch's breakthrough role was her tenure as a cast member on the NBC sketch comedy series Saturday Night Live from 1999 to 2006. During her time on SNL, she portrayed a variety of roles including Debbie Downer. She has since occasionally returned to SNL as a guest portraying Senator Amy Klobuchar.
Jill Talley is an American actress and comedian. She is a main cast member on the animated series SpongeBob SquarePants, in which she voices Karen Plankton. Her other voice roles include Sarah Dubois on Adult Swim's The Boondocks and Rita Loud on The Loud House. She is married to fellow voice artist Tom Kenny, Who voices SpongeBob in the SpongeBob series
Daniel Jason Sudeikis is an American actor, comedian, writer, and producer. In the 1990s, he began his career in improv comedy and performed with ComedySportz, iO Chicago, and The Second City. In 2003, Sudeikis was hired as a writer for the NBC sketch comedy series Saturday Night Live, and later spent nine seasons as a cast member from 2005 to 2013, playing Joe Biden and Mitt Romney, among others.
Stephanie Catherine Miller is an American political commentator, comedian, and host of The Stephanie Miller Show, a Progressive talk radio program produced in Los Angeles, California, by WYD Media Management and syndicated nationally by Westwood One. In 2017, Talkers Magazine ranked her the 23rd-most important radio talk show host in the U.S. Miller has leveraged her talk show via various platforms including online, as well as via her Sexy Liberal Tour live comedy show.
Rebecca Northan is a Canadian actor, improviser, theatre director, and creative artist. She is known for playing the hippie mother Diane Macleod on the CTV & The Comedy Network sitcom Alice, I Think and for her role as Jane in the independent film Adult Adoption. She is a graduate of the University of Calgary, and an alumna of the Loose Moose Theatre Company where she did her improv training with Keith Johnstone.
Becky Johnson is a Canadian comedian, writer, actress, improviser, craftsperson and organizer.
Kay Cannon is an American screenwriter, producer, director, and actress. She is best known for writing and producing the Pitch Perfect film series (2012–2017). She made her directorial debut with the comedy film Blockers (2018). Cannon was also a writer and producer for the NBC comedy series 30 Rock (2007–2012) and the FOX comedy series New Girl (2012–2014). She created, wrote and produced the short-lived Netflix comedy-drama series Girlboss (2017).
Sarah Catherine E Hadland is an English actress. She is best known for her role as Stevie Sutton in the BBC One BAFTA-nominated comedy television series Miranda (2009–2015) and Trish in The Job Lot (2013–2015).
June Diane Raphael is an American actress, comedian, and screenwriter. She has starred in TV comedy programs Burning Love, Adult Swim's NTSF:SD:SUV::, and Grace and Frankie. Notable film work includes supporting roles in Year One and Unfinished Business, as well as her 2013 Sundance film Ass Backwards, which she co-wrote and starred in with her creative partner Casey Wilson. She currently co-hosts both How Did This Get Made? alongside Jason Mantzoukas and her husband Paul Scheer, and The Deep Dive with Jessica St. Clair.
Stephanie Courtney is an American actress and comedian, best known for playing the advertising character Flo in television and radio commercials for Progressive Corporation beginning in 2008.
Elizabeth Claire Kemper is an American actress and comedian, best known for her roles of Erin Hannon in the sitcom The Office (2009–2013), and Kimmy Schmidt in the sitcom Unbreakable Kimmy Schmidt (2015–2019). She has also appeared in films, notably Bridesmaids (2011), 21 Jump Street (2012), Sex Tape (2014), and Home Sweet Home Alone (2021). In 2018, she released her debut book, My Squirrel Days.
Dorthea Lauren Allegra Lapkus is an American actress and comedian, known for portraying Susan Fischer in the Netflix comedy-drama series Orange Is the New Black and Jess in the HBO comedy-drama series Crashing (2017–2019). She has also appeared in the television series Are You There, Chelsea? (2012), Hot in Cleveland (2012), Clipped (2015), The Big Bang Theory (2018–2019), and Good Girls (2020–2021) and in the films Jurassic World (2015), The Unicorn (2018), and The Wrong Missy (2020). She played the voice role of Lotta in the animated comedy series Harvey Girls Forever! (2018–2020).
Yasmine Akram is an Irish-Pakistani actress, writer and comedian. She has written comedy sketches for the BBC and Channel 4, and played Janine Hawkins in the third series of Sherlock.
Naomi Snieckus is a Canadian actress, best known for her regular television role as Bobbi in Mr. D and her appearance as Nina in Saw 3D. She is also a podcast host.
Louisa Clare Harland is an Irish actress. She is known for her roles as Orla McCool in the Channel 4 sitcom Derry Girls (2018–2022) and the titular character of the Disney+ series Renegade Nell (2024).
