Alice Carter

Alice Carter (née Melissa Moretti, previously Alice Sangster), born 5 August 1975, was the daughter of Jack Harkness and Italian former Torchwood Three operative Lucia Moretti, and thus also Gray's niece. She lived with her son, Jack's grandson, Steven, who like every child in the world was briefly taken over by the 456. In 1977, Alice was put into cover by her mother, Lucia, who died in 2006 of natural causes. In hiding, Alice's parents were recorded as James and Mary Sangster, however the government knew they did not exist.

Following the first sign of the return of the 456, she was visited by her father, who wanted to do some tests on Steven. She denied Jack the opportunity, as she saw the potential harm that could befall her son should he associate himself too much with him. The conversation also reveals she leads Steven to believe Jack is his uncle, presumably until he becomes old enough to realise Jack doesn't age and is in fact his grandfather.

Agent Johnson and her men took Alice and Steven into custody to use against Jack.

On Day Five, Alice and Steven were released from prison, but Jack needed a child to reverse the signal that killed Clem MacDonald to use against the 456. With no other child available to transmit the signal, Jack was forced to use Steven against Alice's wishes, which resulted in his death. Afterwards, Alice encountered her father in a hallway, but turned and left him without saying a word.