Colin Andrew Mochrie is a Scottish-born Canadian actor and improvisational comedian, most famous for his appearances on the British and U.S. versions of television improvisation show "Whose Line Is It Anyway?".

Colin Mochrie plays as Self in Whose Line Is It Anyway?.
Colin Mochrie is the top #1 member of the cast and appears in 168 episodes.

Ryan Lee Stiles is an Canadian-American actor, comedian, and producer whose work is often associated with improvisational comedy. He is best known for his work on the American and British versions of Whose Line Is It Anyway?, and the role of Lewis Kiniski on The Drew Carey Show.

Ryan Stiles plays as Self in Whose Line Is It Anyway?.
Ryan Stiles is the top #2 member of the cast and appears in 168 episodes.

Laura Hall is an American musician from Chicago. She is best known for her role as band leader and pianist on the American version of the improvisational comedy television show Whose Line Is It Anyway?.

Laura Hall plays as Self in Whose Line Is It Anyway?.
Laura Hall is the top #3 member of the cast and appears in 168 episodes.

Wayne Alphonso Brady (born June 2, 1972) is an Emmy Award-winning actor, singer, comedian, host, and television personality, known for his work as a comedian on the American version of the improv comedy series Whose Line Is It Anyway?, and as the host of his daytime talk show The Wayne Brady Show. He was the original host of FOX's Don't Forget the Lyrics!, hosts the 2009 revival of Let's Make a Deal as well as Game of Talents. He has been a contestant on Dancing with the Stars and on The Masked Singer.

Wayne Brady plays as Self in Whose Line Is It Anyway?.
Wayne Brady is the top #4 member of the cast and appears in 168 episodes.

Linda Taylor was born and raised in Southern California. At the age of four, she began playing the guitar. Although she had several teachers early on and participated in the typical school programs, she is primarily self-taught. Before joining Drew Carey and the cast of "Whose Line is it Anyway" to play improvised music in 1999, she taught guitar at the Los Angeles Music Academy.

Linda Taylor plays as Self in Whose Line Is It Anyway?.
Linda Taylor is the top #5 member of the cast and appears in 168 episodes.

Aisha N. Tyler (born September 18, 1970) is an American actress, stand-up comedian, and author, known for her regular role in the first season of Ghost Whisperer and voicing Lana Kane in Archer, as well as her recurring roles in Friends, CSI: Crime Scene Investigation and Talk Soup. Description above from the Wikipedia article Aisha Tyler, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Aisha Tyler plays as Tara Lewis in Whose Line Is It Anyway?.
Aisha Tyler is the top #6 member of the cast and appears in 79 episodes.