Contrary to nearly everything we know about the way celebrity is supposed to work, Banksy's identity remains as mysterious as when he first began leaving stenciled rats on the walls of London's public spaces.

CNN: Banksy: Still hiding in plain sight

The release of the photograph, along with details of his appearance and scant possessions at the time of his discovery, was part of an effort by German authorities to unravel the mysterious identity and family background of a young man who spoke English and a little German.

CNN: Police: 'Forest Boy' story is a hoax

The release of the photograph, along with details of his appearance and scant possessions at the time of his discovery, is part of an effort by German authorities to unravel the mysterious identity of the boy who speaks English and a little German and what is his family background.

CNN: German police seek help identifying teen who lived in woods

To be targeted, hapless victims connect to a mysterious Wi-fi network, which steals their identity figuratively, after which a spoonhead robot turns up to steal it literally.

FORBES: 'Doctor Who' Review: 'Bells of St. John' Is a World Wide Web of Intrigue

Barrowman's character is a mysterious, immortal man from the 51st century who adopted the identity of a World War II Royal Air Force pilot and ultimately ended up protecting mankind with the help of a secretive alien-hunting team of Earthlings.

CNN: STORY HIGHLIGHTS