Alice Carter
From Tardis Wiki, the free Doctor Who reference
Alice Carter (nee Sangster) is Jack Harkness’ daughter and lives in Cardiff with her son, Jack's grandson, Steven – who, like every child in the world, is briefly taken over by the 456. She appears in part one when Jack visits her and wants to do some tests on Steven. Then, Alice tells her father to leave, and he does to visit Dr Rupesh. Alice's son, Steven, thinks Jack is his uncle. In 1977, Alice was put into cover by her mother, and Italian Torchwood agent, Lucia Moretti, who died in 2006. In hiding, Alice's parents were apparently called James and Mary Sangster, however the government knew they did not exist.
