Pietro Rossi

Pietro Rossi was an Italian plumber from Rome who was transported across dimensions when he entered a house on the outskirts of the city and tried to fix a blockage in the pipes in 1985. Elsewhere in a "side dimension", he assisted the Eleventh Doctor and Amy Pond in the rescue of others that had been captured by Miyota by re-plumbing the pipes. (COMIC: Dungeon of the Lost)