Edwin Bracewell was an Android made by the Daleks after they landed in 1941. He was a cover up and was placed in a War Room alongside Winston Churchill. He was unaware of his origins and was implanted with memories of a human life and the creation of the Daleks as a weapon called an 'Ironside' for Britain.
When Churchill summonded the Doctor and Amy Pond to his base, the Doctor did not like what he saw - as they were using Daleks his enemy. He angered the Daleks and the Daleks revealed their true nature exterminating someone, then blasting Bracewell's hand off. The Doctor then went to confront the Daleks and foiled their original plan. In retaliaition they revealed that Bracewell's android body contained an Oblivion Continuum and threatened to activate its power source, destroying the planet. When the Doctor complied, the Daleks activated the bomb anyway and fled through a time corridor. The Doctor only managed to stop the Oblivion Continuum from detonating by the aid of Amy Pond with both of them giving Professor Bracewell a reason to live, thus deactivating the weapon.
Afterwards Bracewell presumably lead a normal human life. (DW: Victory of the Daleks)
Trivia
- Edwin's circular chest plate and its blue lighting could be a reference to Marvel Comics' Iron Man.