 In the London production of "Once Upon a Mattress", Connell starred as Winifred, the role that Carol Burnett had originated in New York.Her Broadway debut came in the role of Mrs. Peachum in "Threepenny Opera" (1955).Connell's most prominent success came in 1966 when she was cast as Agnes Gooch in the original Broadway production of Jerry Herman's "Mame".