The British television version lasted for a total of 10 seasons, with 136 episodes, all of which were hosted by Clive Anderson.
Colin Mochrie and Ryan Stiles, who would later star in the U. version, became regular cast members in the seventh and eighth seasons.
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 performers who were not involved in a game remained in their seats.
Additionally, the show was marked by humorous banter among the performers and host.
The original host Drew Carey awarded arbitrary point values after each game, often citing a humorous reason for his decision.
The points were purely decorative and served no practical purpose.
There are 8 games that have been performed at least once in every season, these are Scenes from a Hat, Greatest Hits, Props, Let's Make a Date, Weird Newscasters, Duet, Helping Hands and Questions Only. All games were designed with the same principle of those from the UK original – to test the performers' improvisational comedy skills, with some games requiring the host to ask the studio audience for suggestions for specific topics or situations, while at other times these suggestions were written by the production staff, or submitted by the audience in advance, and chosen from among these.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.After this game during the first season of the series, credits simply rolled under the show's theme. features four performers, two of whom, Colin Mochrie and Ryan Stiles, were regular, permanent performers throughout the original format, having featured prominently in the UK original; Stiles since his first appearance in its second season in 1989, while Mochrie since his first appearance in the following season in 1991, with both making regular appearances in the UK version from 1995 until its end in 1999.In the second season, the reading of the credits was performed by one or more cast members in a comedic fashion, based on a theme announced by Carey that often derived from a successful joke earlier in the show. Another performer who made frequent, recurring appearances was Wayne Brady, who appeared in the majority of episodes of the original format.