Thos Gregson is Aunt Agatha's loathly son, England's premier fiend in human shape, under Bingo Little's tutelage in Jeeves and the Impending Doom; a chunky kid of fourteen in The Love That Purifies, often taken to the theatre at Agatha's request by a reluctant Bertie Wooster.

• Jeeves and the Impending Doom
• The Love That Purifies
• The Mating Season