Colin Mochrie is a Scottish-born Canadian actor, writer, producer, and improvisational comedian best known for his appearances on both the British and American versions of the improvisational TV show Whose Line Is It Anyway? He was born on November 30, 1957, in Kilmarnock, Scotland, and moved to Canada in 1964. Mochrie developed his comedic skills with Vancouver's TheatreSports League and Toronto's Second City theatre before gaining fame on Whose Line Is It Anyway?

. He is celebrated for his quick wit and clever improvisational comedy, often regarded as one of the sharpest performers on the show. He has also co-written and co-produced Canadian sitcoms with his wife, comedian Debra McGrath, and has received numerous awards including Canadian Comedy Awards and a Gemini Award

. Mochrie continues to perform live shows, including a comedy tour with Brad Sherwood, another Whose Line alum, demonstrating his enduring popularity and talent in improvisational comedy