Eleventh Doctor (Ganger)

The Doctor was a Ganger clone accidently created during a solar storm in the 22nd century following the original Time Lord known as the Doctor leaving a DNA imprint in the Flesh. It took the form of his eleventh incarnation after having some trouble with residual traces of his other previous lives.

He sacrificed himself to allow his counterpart to leave with the survivors while he and a fellow Ganger destabilised themselves to stop an insane Ganger. The only thing remaining of him is the shoes he swapped with the Doctor.

Biography
When a bolt of solar energy struck the vat the Flesh was held in, it formed a copy of the the Eleventh Doctor from a tiny measure of his genetic material, gained when he touched the Flesh. He tried to make contact with Jennifer Lucas, but scared her away as he had not yet stablised his form. When the humans and the real Doctor fled from the other Gangers into the chapel, this Ganger confronted them and told them to trust him. (DW: The Rebel Flesh)

At first, the Ganger had some trouble adapting to the Doctor's DNA due to the residual traces of his previous incarnations in his body. These caused him to briefly act like his first, third, fourth, and tenth incarnations, which he, like the real Doctor, did not like. He stabilised into a form and manner virtually identical to the Eleventh Doctor's; the only way to distinguish them was their difference in shoes, as the original Doctor had replaced his after the initial scan. The two Doctors subsequently swapped shoes while their companions were distracted in order to prove that Gangers were no different from their originals.

The Ganger Doctor sacrificed himself and Ganger Miranda to stop Ganger Jennifer, setting the sonic screwdriver to a frequency that would cause the Flesh to collapse, in full knowledge that this would destroy him too, so that the others would be encouraged to negotiate better conditions for the Gangers. (DW: The Almost People)

Personality
He and the original Doctor completed each other's sentences and knew each other's mind, as shown by their cooperating on a plan for one to replace another. This version of the Doctor also seemed to share the original's beliefs and values, as evidenced by his self-sacrifice. (DW: The Rebel Flesh/The Almost People)

Portrayal
As with the original Eleventh Doctor, this Ganger was played by Matt Smith. While acting as previous incarnations, he briefly adopted the voices of the Fourth Doctor (Tom Baker) and the Tenth Doctor (David Tennant).
 * "Would you like a jelly baby?" in the manner and voice of the Fourth Doctor (specific audio clip from DW: The Robots of Death).
 * "Hello, I'm the Doctor," as the Tenth Doctor did (specific audio clip from DW: The Girl in the Fireplace).