Jenkins (The Doctor Dances)

From TARDIS Index File, the free Doctor Who reference.

Jenkins was a British Army officer who was part of the unit guarding the crash site of the Chula ambulance near the Albion Hospital. He was also one of the first of the group to be transformed into a gas mask zombie. Nancy, who had been captured trying to gain access to the secure area, was placed under Jenkins' care, but she tried desperately to seek an alternate captor once she noticed the officer was displaying the early signs of transformation. When it became clear that Algy was not going to relocate her, she tried to slow the process by getting Jenkins to remember and say the names of his mother and wife. (DW: The Doctor Dances)

He could plausibly be related to two UNIT officers: Tony Jenkins who served with the Brigadier (DW: The Dæmons) or Ross Jenkins who served under Colonel Mace (DW: The Sontaran Strategem). Jenkins is also a schoolboy in Human Nature. It is possible he is the grown up version of young Jenkins.