Johnson (Children of Earth: Day One)

Agent Johnson was a trained government official tasked with infiltrating Torchwood three to assess how well equipped they were.

History
She placed Rupesh Patinjali in the field to masquerade as a potential new member for Torchwood. However after months of perfect infiltration the plan was changed due to the 456 making contact again. This occurance forced the government to conclude that Torchwood were too dangerous to be kept around and Johnson ordered Patinjali to kill Captain Jack Harkness. She then proceeded to cut him open and place a bomb in his stomach as a means of destroying the HUB which the government (incorrectly) believed was connected to Jacks immortality. When Patinjali asked if he would have to go into hiding she shot him dead. Johnson positioned snipers on Cardiff bay when the HUB blew up and phoned John Frobisher to inform him that Harkness was dead but Gwen and Ianto had escaped. She and her men then followed Gwen to her home to kill her, dragging PC Andy in tow. However Gwen promptly shot the tyres of their vehicle and drove away. (TW: Day One)

The next morning Johnson supervised the search for Jacks body and when certain body parts were found she ordered them to be transported and sealed within a remote military compound. However Jacks body eventually reformed and she opted to have him encased in cement to stop him from coming back to life. However her plans went up in smoke when Gwen, Rhys and Ianto infiltrated the base and smashed Jack out of the cell with a fork-lift truck. She and her men pursued the group but Gwen shot a lorry in the middle of the road which caught fire and exploded, blocking their path. She then phoned Mr Frobisher and apologised for their failure. (TW: Day Two)

The next day Johnson traced a phone call to Jacks mobile and found out that Alice Carter had been trying to contact him and was in fact his daughter. She and her men stormed Alice's home and when she threatened them with a gun Johnson convinced her to come clean. It was then that Alice's son Steven was taken over by the 456 and Johnson realised that the aliens were here. (TW: Day Three)

Her next assingment was to trace Torchwood she found them and knew they where hiding in a warehouse used by Torchwood One. She and her swat team attacked and held Gwen Cooper hostage. She was told to stand down when Torchwood had blackmailed the government. (TW:Day Four)