Cofelia's guards
Find him, and the woman. Don't waste time, just kill them.
Matron Cofelia's guards were two mysterious, bald, body guards armed with large guns and under the control of the wet nurse Matron Cofelia. The same two guards were also the collection squad who collected the Adipose children who were create due to the emergency parthenogenesis. When the Matron became suspicious of Penny Carter she ordered her guards to break down the toilet cubicles and found her.
They tieed her up on a chair with cables while Cofielia would explained her plans, but because of the Doctor and Donna Noble intervention, Cofelia and her guards chased them down. After meeting the Doctor and Donna face to face the Matron felt that the Doctor will inform the Shadow Proclamation, she gave them their last order, to kill the Doctor and Donna, but they ended up electrocuted by the Doctor.