Esther Drummond
From Tardis Wiki, the free Doctor Who reference
Esther Drummond was a CIA agent in the 21st century. (TW: The New World)
MEETING JACK HARKness
After witnessing the "Torchwood virus" incident at the CIA , Esther decided to investigate on her own on the Torchwood Case, despite it had been closed. Therefore, she found information about the Torchwood Institute , Captain Jack Harkness , and Gwen Cooper , precisely when Jack Harkness found her, saving her from an attempt. Jack Harkness then gave her all the information she wanted but deleted her memory afterwards.