Alongside Mochrie and Stiles, other veterans of the UK series appeared on the U. version included Greg Proops, Brad Sherwood, and Chip Esten, with the show introducing several newcomers that took part, including Denny Siegel, Kathy Greenwood, Jeff Davis, Patrick Bristow, Stephen Colbert, Kathy Kinney, and Ian Gomez, though mainly in the early seasons of the show.Unlike the UK original, the US version occasionally featured a celebrity guest performer, such as Robin Williams, Kathy Griffin, and Whoopi Goldberg, while on other occasions, a celebrity made a guest appearance for individual games; such appearance have included Sid Caesar, Celebrity guests became a regular feature of the show beginning with season 9.Stiles is the most prolific performer in the history of Whose Line? The show consists of a panel of four performers who create characters, scenes, and songs on the spot, in the style of short-form improvisation games., having made 76 appearances in the British version, and only having missed two episodes since the start of the run in the U. Colin Mochrie is the only performer to have appeared in every episode of the U. Topics for the games are based on either audience suggestions or predetermined prompts from the host, who would set up a game and situation that the performers would improvise.Although they had no bad feelings about these sort of games, many of the performers disliked them; while Wayne Brady turned out to be well suited to them, having Chip Esten, Jeff Davis, Brad Sherwood and Gary Anthony Williams making frequent appearances as his duet partner, Stiles frequently expressed open disdain towards the "Hoedown" game, which became a bit of a running gag, while Mochrie rarely sings any lyrics, mainly preferring to deliver his lines in a spoken word fashion, much like in the UK original. was created by Dan Patterson and Mark Leveson in 1988 as a radio show on BBC Radio 4 in the United Kingdom.This early incarnation of the show is notable as being the origin of its tradition of having the performers read the credits in an amusing style; as it was a radio show, it was necessary for somebody to read the credits, and it was decided that it might as well be done as part of the program, rather than being done by a traditional BBC Radio announcer.
The show turned into an inexpensive hit (though less so than the British version), and ABC kept Carey on as host.In addition, the host would control a buzzer which would signify the end of most games, or the end of individual sections of rapid-fire games such as "Scenes from a Hat".In addition to being tested on their comedy skills in improv games, the performers are also tested on other skills, such as singing, dancing, or impressions, as Whose Line features a number of musical games, with one or more of the show's resident musicians playing live backing music for them, except on a few occasions when pre-recorded music was also used.He would reiterate this at the beginning of, and multiple times throughout, each episode by describing Whose Line as "the show where everything's made up and the points don't matter".The style of the games were varied (see Games, below).The original host Drew Carey awarded arbitrary point values after each game, often citing a humorous reason for his decision.