Prudence Flitt is a character that appears in episode 4 of Wallace & Gromit's Grand Adventures, "The Bogey Man".
She is the great-aunt and only living relative of Felicity Flitt, and shows a deep disliking for the town's local country-club, 'Prickly Thicket'.
After it was revealed that Wallace, Felicity's soon-to-be fiancé, was a member of the club (temporarily), she was quick to forbid the marriage from happening.