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

 * According to the Sao Til website, his name, when combined with that of his species, Aminopius, was intended to create an anagram of animus spoliatio, Latin for soul robbing.