A green room in show business lexicon in British and American English is the space in a theatre, studio or similar venue which accommodates performers not yet required on stage. The green room functions as a waiting room and lounge for performers before and after a performance, and during the show when they are not engaged onstage.

The origin of the term is often ascribed to such rooms historically being painted green, yet the modern "green room" is usually not green at all.

The specific origin of the term is lost to history, which has led to many imaginative theories and claims. One story is that London's Blackfriars Theatre (1599) included a room behind the scenes; this room happened to be painted green; here the actors waited to go on stage; and it was called "the green room." Some English theatres contained several green rooms, each ranked according to the status and the salary of the actor: one could be fined for using a green room above one's station.

Some theories have attempted to identify specific historical origins for the term. For example:

Paul Provenza (born July 31, 1957) is an actor, comedian, filmmaker, and self-professed skeptic currently based in Los Angeles.

Provenza was born and grew up in the Pelham Parkway section of the Bronx, New York City, and graduated in 1975 from the Bronx High School of Science. In high school, he started performing stand-up comedy, making his stage debut at age 17 at the original The Improv in Manhattan. He continued performing while attending the University of Pennsylvania, taking a year's leave of absence to study in London at the Royal Academy of Dramatic Arts. While at RADA, he joined a classical repertory theatre group, becoming one of few Americans to perform the role of Romeo on the London stage. He graduated in 1979 from the University of Pennsylvania, the year it awarded its first Theatre Arts degree. At Penn, he wrote for the Pennsylvania Punch Bowl and was a cast member of the Mask and Wig Club, where he has returned numerous times to perform in the annual Intercollegiate Comedy Festival.

Colin Edward Quinn (born June 6, 1959) is an American stand-up comedian and writer best known for his five years in the cast of Saturday Night Live, as the sidekick/announcer of MTV's late 1980s gameshow Remote Control and as host of Tough Crowd with Colin Quinn on Comedy Central from 2002–2004.

Quinn was born in Brooklyn, the son of teachers of Irish descent, and was raised in the Park Slope section of the borough. He attended and graduated from John Dewey High School. His natural idiosyncratic mannerisms are trademarks of his stand-up act, headlining at top comedy clubs across the country, including Caroline's Comedy Club in New York City. Before becoming a comedian, Quinn attended Stony Brook University for a year and worked as a bartender. He stopped drinking in the early 1980s after several bad experiences with alcohol, including drunken blackouts and nights spent in jail.

After quitting bartending, Quinn began his stand-up career in 1984. He first achieved fame in 1987 as co-host of the MTV game show Remote Control, which he did for three years. In 1989, he hosted A&E stand-up showcase Caroline's Comedy Hour, and acted in and wrote the comedic short/music video Going Back to Brooklyn along with Ben Stiller. Much of his early comedy career focused on stand-up and writing for shows like In Living Color. He later co-wrote the story and was an associate producer for the movie Celtic Pride, starring Damon Wayans and Dan Aykroyd.

Russell Dominic Peters (born September 29, 1970) is a Canadian comedian, actor and disc jockey. He began performing in Toronto in 1989 and has been nominated for four Gemini Awards.

Russell Peters was born in Brampton, Ontario, Canada to Eric and Maureen Peters. His family is of Anglo-Indian ancestry and is Catholic. His father was born in Bombay, Maharashtra, India, and worked as a federal meat inspector; he is regularly mentioned and featured in his comedy work. His mother was born in Calcutta, West Bengal, India. He has an older brother named Clayton who was born in Calcutta. Russell attended Chinguacousy Secondary School for grades 9–10, and North Peel Secondary School for grades 11–12 in Brampton.

Peters began performing in Toronto in 1989. Peters' popularity extends to several countries. He has since also performed in the United Kingdom, United States, Australia, New Zealand, Ireland, Afghanistan, Sweden, South Africa, India, the Caribbean, Philippines, Vietnam, mainland China, Canada, Hong Kong, Sri Lanka, France, Singapore, United Arab Emirates, Bahrain, Jordan, Norway, Lebanon, Oman, Pakistan, Malaysia, and Trinidad among other places.

Timothy David "Tim" Minchin (born 7 October 1975 in Northampton, England) is an Australian-British comedian, actor, and musician.

Tim Minchin is best known for his musical comedy, which has featured in six CDs, three DVDs and a number of live comedy shows which he has performed internationally. He has also appeared on television in Australia, Britain and the United States. After growing up in Perth, Western Australia, he attended the University of Western Australia and WAAPA before moving to Melbourne in 2002. His breakout show, "Dark Side", launched him into the public eye, achieving critical success at the 2005 Melbourne International Comedy Festival and the 2005 Edinburgh Festival Fringe.

Minchin has a background in theatre and has appeared in various stage productions, in addition to some small acting roles on Australian TV. A documentary film about Minchin, Rock N Roll Nerd (directed by Rhian Skirving), was released theatrically in 2008 and broadcast by ABC1 in 2009. He is the co-writer of the Olivier Award winning hit musical Matilda the Musical, based on the Roald Dahl book Matilda.