Mary Jo Catlett (born September 2, 1938) is an American actress and comedian.
She has been a main cast member on the animated series SpongeBob SquarePants since its debut, providing the voice of Mrs.
She is also known for originating the role of Ernestina in the 1964 Broadway production of Hello, Dolly! and for playing Pearl Gallagher, the third housekeeper on Diff'rent Strokes.Catlett began her career as a theater actress in Off-Broadway and Broadway musicals.
Since the late 1960s, Catlett has appeared in television shows such as M*A*S*H, The Waltons, The Bob Newhart Show, The Dukes of Hazzard, and General Hospital.
She received a Daytime Emmy Award nomination at the 1990 ceremony for her work in the latter.
She also received an Annie Award nomination in 2001 for her voice-over work as Mrs.