#10: Kaitlin Olson

Kaitlin Olson made a blink-and-you-miss-it cameo in Coyote Ugly as an auction bidder, but her true comedic brilliance was yet to be revealed. With a background in improv from the Groundlings, she quickly found her stride in Hollywood.

Before landing her iconic role as Sweet Dee in It’s Always Sunny in Philadelphia, she appeared in Punk’d and Curb Your Enthusiasm. Over the years, she expanded her portfolio with voice work in Finding Dory and roles in films like The Heat.