The short answer is, no, the series is not scripted. In a blooper reel that was released, sometimes Whose Line producers would need to intervene on topics that were deemed inappropriate. ... Though producers need to edit down The CW series to fit the 22-minute show format, according to Colin, they don't edit too much.

Are Colin Mochrie and Ryan Stiles still friends?

Ryan Stiles and Colin Mochrie are best friends in real life. ... Drew Carey starred in and directed both this and The Drew Carey Show (1995) at the same time, a fact frequently referenced by Ryan Stiles.

Why was Whose Line Is It Anyway Cancelled?

Production of the American version was canceled by ABC in 2003 because of low ratings, with already-produced episodes airing first-run into 2004.