If you grew up in the 90s, you've watched Whose Line Is It Anyway?, at least once. It was one of the biggest shows in the country and was the introduction to improv comedy for each and every one of us. Drew Carey was the host of the show that made us all laugh hysterically for years. He was joined every episode by Colin Mochrie and Ryan Stiles. Wayne Brady was almost always there too, so eventually he became one of the regulars as well.ABCThey would also have another guest on every episode to fill in the last empty