Stephanie "Stiffy" Byng, courted by Stinker Pinker in The Code of the Woosters and Stiff Upper Lip, Jeeves. Cousin to Madeline Bassett, lives at Totleigh Towers, where she is the ward of her uncle, Sir Watkyn Bassett. Owns an Aberdeen terrier named Bartholomew. In The Code of the Woosters she induces fiance Stinker Pinker to steal Constable Oates' helmet. Referred to in Much Obliged, Jeeves as Mrs. Stinker Pinker.

• The Code of the Woosters
• Stiff Upper Lip, Jeeves