Cyberman
A parallel universe version of the Cybermen appeared in the 2006 series in the two-part story, Rise of the Cybermen and The Age of Steel. They also appear in Army Of Ghosts and Doomsday. They also appeared in the spin-off series Torchwood in the episode "Cyberwoman". They would later return to the new series in the 2008 Christmas Special "The Next Doctor", introducing two new types of cyberman; the Cyber-Shades and the Cyber-King.