Darren (Worlds in Time)

Daren was a Silurian companion of the Eleventh Doctor who travelled alongside  companion and other companions. He travelled to countless worlds, including Earth, Ember, and Messaline. He encountered many monsters, inlcuing Autons, Clockwork Droids, and Zygons. (VG: Doctor Who: Worlds in Time)

Behind the scenes

 * Unlike the controller-created companion, "Darren" was an automated character designed to help the player when they were alone. He, along with Gethin, Mal, Meera, Noma, Nneka, Silas, Steven, Talia, Camile, and Will, were already designed to be in the game.