Back in 1993, when I had grand plans of forming an improvisational troupe in Sacramento that fizzled, I wrote down a list of all of the games in Whose Line Is It Anyway? that I used for auditioning potential actors. I lost the list many years ago, which is just as well, seeing how terrible my handwriting is. Thankfully, Wikipedia ha a list of nearly all of the games used on both the UK and the US incarnations of the program.
Also, if this is true, I had no idea that Tony Slattery went through a midlife crisis where he refused to answer the door and the telephone for six months.