North was an MI6 agent.
Biography
North was sent to spy on the Eighth Doctor. He found his at The World's End, a pub in Camden Town. There he pretended to bump into him, planting a listening device as he did so. Outside, North tried to impose on their conversation but could only hear the Doctor commenting on how he was jokingly going to blow up the Houses of Parliament.
North was then forced back inside by Tony and Destrii. There he told the Doctor he worked for Leighton Woodrow. The conversation was cut short when a group of Cybermen attacked. North called for a rescue helicopter and took the unconscious Doctor with him, leaving the others.
They travelled to an MI6 base in Vauxhall Cross where North was charged with ensuring the Doctor stayed within the laboratory. However, the Doctor simply knocked him out. After the Cybermen were defeated, he though back to the Doctor and the things he had learnt from him. (DWM: The Flood)
