Mary Lynn Rajskub is an American actress and comedian, best known for her role as Chloe O'Brian on the television series 24. Born on June 22, 1971, in Detroit, Michigan, she began her career in comedy, performing in various stand-up shows and sketch comedy. In addition to her work on 24, Rajskub has appeared in films such as Little Miss Sunshine and has made guest appearances on several popular TV shows, including The Larry Sanders Show and It's Always Sunny in Philadelphia. She is recognized for her unique comedic style and contributions to both television and film.