Sad Tony

"Sad Tony" was an alien who appeared on a missing poster displayed in what appeared to be a backalley in Cardiff, but was actually an image generated onboard the Abzorbaloff's ship in 2009. Sad Tony was infact onboard the ship whilst the Tenth Doctor confronted the Abzorbaloff and the Krakanord, which ended in the death of the Abzorbaloff and the separate departures of both the Doctor and the Krakanord. (WC: The Genuine Article)

Behind the scenes
Sad Tony was created by Emily from Sandbach for Blue Peter's Doctor Who Design-a-Monster competition in 2005, which was ultimately won by William Grantham's Abzorbaloff.