Sweeney Todd is a fictional character who first appeared as the murderer of the Victorian penny dreadful The String of Pearls (1846–1847). In 1979, he was introduced as an antihero in the musical Sweeney Todd: The Demon Barber of Fleet Street and its 2007 film adaptation of the same name. Claims that Sweeney Todd was a historical person are strongly disputed by scholars, although possible legendary prototypes exist.
In the original version of the tale, Todd is a barber who dispatches his victims by pulling a lever as they sit in his barber chair. His victims fall backward down a revolving trapdoor into the basement of his shop, generally causing them to break their necks or skulls. In case they are alive, Todd goes to the basement and "polishes them off" (slitting their throats with his straight razor). In some adaptations, the murdering process is reversed, with Todd slitting his customers' throats before dispatching them into the basement via the revolving trapdoor. After Todd has robbed his dead victims of their goods, Mrs. Lovett, his partner in crime (in some later versions, his friend and/or lover), assists him in disposing of the bodies by baking their flesh into meat pies and selling them to the unsuspecting customers of her pie shop. Todd's barber shop is situated at 186 Fleet Street, London, next to St. Dunstan's church, and is connected to Mrs. Lovett's pie shop in nearby Bell Yard by means of an underground passage. In most versions of the story, he and Mrs. Lovett hire an unwitting orphan boy, Tobias Ragg, to serve the pies to customers.
The tale became a staple of Victorian melodrama. Later it was the subject of a 1959 ballet by English composer Sir Malcolm Arnold and, in 1979, a Tony award-winning Broadway musical by Stephen Sondheim. Sweeney Todd has also been featured in several films, the most recent being the 2007 musical film, directed by Tim Burton and starring Johnny Depp, based on the 1979 musical.