Jack's father, Christian Shephard is also Claire's father.

Ana Lucia and Christian Shephard hung out a little.

Christian Shephard and Sawyer Ford talked together in a bar.

Sayid asked Shannon to watch his bags.

Boone saw Sawyer being arrested while he was reporting abuse on his sister Shannon.

Jack let Shannon's father, Adam, die while saving his future wife/ex-wife Sara, when Adam and Sara were both in a bad car crash.

Libby and Hurley were at the same mental institution.

Libby gave Desmond the money to buy a boat for his round the world sailing race.

Locke worked at a box company that Hurley owned.

Hurley bought a Drive Shaft CD.

The Lottery girl from Hurley's lottery winning is also one of Sawyer's many bedmates.

Charlie was playing his guitar outside for money, when Desmond came out and saw him.

Sawyer's girlfriend helped Kate see her mother after Kate helped her with a con.

Charlie helped Nadia (Sayid's long lost love) to escape the attentions of a mugger in an alleyway in England leading to her commenting that he is a Hero.

Locke's mother and Ben's mother are both named Emily.

Tthe Lottery girl from Hurley's lottery winning is also one of Sawyer's many bedmates.f Sawyer's many bedmates.