Several years after finally thwarting Arvin Sloane, after the death of her father, and after leaving the US government, Sydney Bristow had a second child with Michael Vaughn, the younger brother of Isabelle Vaughn. They named him Jack and he lived with them on their beach house. He was present when Marcus Dixon returned and asked Sydney and Vaughn to assist on a mission to apprehend Julian Sark, who was still causing problems as an elusive criminal. Sydney carried him as she, Vaughn, Dixon and Isabelle went for a walk down the beach before dinner.
Father Michael Vaughn
Mother Sydney Bristow
Sister Isabelle Vaughn
Grandmother's Irina Derevko (deceased) Deloreme Vaughn
Aunts Nadia Santos (deceased)
Great-Aunts Elena Derevko (deceased) Kayta Derevko