Stark (The Pandorica Opens)

Commander Stark was a Sontaran Commander. He, and other Sontarans, were apart of The Alliance alongside the Daleks, Cybermen, Autons, Silurians and more of The Doctor's enemies planning to trap him in The Pandorica, believing him to be the one who is causing The Cracks in the universe. (DW: The Pandorica Opens)