Lumley and Absolutely Fabulous co-star Jennifer Saunders shared torch-carrying duties as it passed through Sloane Square.
The pair smiled and waved to the hundreds of spectators who lined the route to cheer them on, as they completed the leg in a quick walk.
Today's spectacular finale on the Thames for the Olympic flame marked the end of a seventy-day journey around the British Isles.
A round up of the torch route on its penultimate day
Walliams on carrying the torch