Sao Til

Sao Til is a non-canonical character from Tonight's the Night''. ''Tim Ingham dressed up as him, wearing a blue mask, a black bowler hat and a huge robotic arm. He and John Barrowman roleplayed in the TARDIS set, pretending to be Jack Harkness and Til. They had a faux-battle, before they were interrupted by David Tennant, who asked them to get out of "his TARDIS".

Behind the scenes
Sao Til was intended to be a hunter, not for food, but for profit. His name, when combined with that of his species, Aminopius, makes Spoliatio, Latin for soul robbing.