Osmond Brian Jackson (April 6, 1931 – July 2, 2022) was a British actor, photographer and producer who was especially famous as "The Man from Del Monte". Jackson was born on 6 April 1931 in Bolton, Lancashire, England.

He began his career as a Fleet Air Arm photographer and cameraman, then spent many years in the theatre appearing in the plays with repertory seasons at the Old Vic and the Royal Shakespeare Company at Stratford-upon-Avon and London. In 1969–70, he appeared in Mame at the Theatre Royal, Drury Lane, starring Ginger Rogers. He was a regular actor on TV and BBC radio drama.