Play S1E1 Latest S10E11 TV Series Completed 8.2 Whose Line Is It Anyway? 1988 10 Seasons 136 Eps Comedy Play S1E1 Latest S10E11 An un-scripted comedy show in which four guest performers improvise their way through a series of games, many of which rely on audience suggestions. Country United Kingdom Creators Dan Patterson, Mark Leveson First Aired 1988-09-23 Language En Cast Graeme Garden, Griff Rhys Jones, Sandi Toksvig, Tony Slattery, Stephen Frost