Claude Duff — Sir James' junior secretary whose aunt is Dame Daphne Winkworth. His uncle is the Duff of Duff and Trotter, provision merchants
Brenda Piper — Sir James' forceful spinster sister who rules him
Lady Florence Moresby — One of the many domineering sisters of Lord Emsworth. Also widow of the rich American J.J. Underwood. Currently separated from her second husband, Kevin
Victoria Underwood — Florence's pretty step-daughter who studied Art in London, and falls in love with Jeff Bennison
Sergeant E.B. Murchison — Scotland Yard detective who acts as bodyguard to Sir James
Lady Diana Phipps — Another of Lord Emsworth's sisters, the only one Galahad likes. She is beautiful, the widow of Rollo, and Sir James was once in love with her
Jeff Bennison — An impecunious artist in love with Vicky. Teaches drawing at a girls' school in Eastbourne owned by Dame Daphne Winkworth. Went to school with Claude Duff
Dame Daphne Winkworth — Fires Jeff as a drawing teacher at her school
Freddie Threepwood — Lord Emsworth's younger son, who works and lives in America. Comes to London to drum up trade for the English branch of Donaldson's Dog Joy
Stiffy Bates
Messmore Breamworthy
Kevin Moresby
G. Ovens - Inn keeper at Market Blandings
Editorial history
Wodehouse was still working on the book when he died in 1975; the published version was edited by Richard Usborne, and includes Wodehouse's notes on the ending of the story. In various pages of notes, Wodehouse wrote fifteen possible titles for the novel, including Lord Emsworth Entertains, Blandings Castle Fills Up, Gally to the Rescue, The Weird Old Buster, and All's Well at Blandings. He did not consider the title Sunset at Blandings, which was the title chosen by the company that published the book in 1977, Chatto & Windus. Usborne writes that the title is apt but would not have been chosen by Wodehouse himself since, according to Usborne, "Wodehouse would never have locked, even if only by suggestion, the great gates of the castle. He would have wanted it there, with its sun high in the sky, for another visit if the mood took him".
Plot
The story is another tale set at Blandings Castle, filled as ever with romance and imposters. Galahad Threepwood uses his charm and wit to ensure his brother Clarence continues to lead a quiet and peaceful life.