Marietta Sirleaf, better known simply as Retta, is an American stand-up comedian and actress. She is mainly known for her starring role as Donna Meagle onNBC's Parks and Recreation. She has appeared in several films and television shows, and has performed stand-up on Comedy Central's Premium Blend.
Retta has served as the opening act for such comedians as Shirley Hemphill and Bobby Collins. She has made television appearances on E! Entertainment Television's The Soup, Freddie, Moesha, It's Always Sunny in Philadelphia, the "Comedy Divas Showcase" segment of The Jenny Jones Show, Retta has performed on Premium Blend, a Comedy Central show featuring up-and-coming comedians.