Cofelia's guards

Matron Cofelia's guards were two mysterious, bald bodyguards 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 that were created due to the emergency parthenogenesis. When the Matron became suspicious of Penny Carter, she ordered her guards to break down the toilet cubicles and find her.

They then tied Penny to a chair with cables while Cofielia explained her plans, but because of the Tenth Doctor's and Donna Noble's intervention, Cofelia and her guards chased them down. After meeting the Doctor and Donna face to face, the Matron felt that the Doctor would inform the Shadow Proclamation. She gave them their last order, to kill the Doctor and Donna, but they ended up electrocuted by the Doctor. (DW: Partners in Crime)