The Oceanic 6 are six survivors of Oceanic Airlines Flight 815 who ultimately get rescued from the Island. So far, three of the six have been revealed. They are as followed.

Jack	Q: How do we know Jack is one of the Oceanic 6? A: We know he is one of the Oceanic 6 because it was revelealed in the Season three finale "Through the Looking Glass". He was also shown in "The End Of The Beginning".
Kate	Q: How do we know Kate is one of the Oceanic 6? A: We know she is one of the Oceanic 6 because it was revealed in a flash forward in "Through The Looking Glass".
Hurley	Q: How do we know Hurley is one of the Oceanic 6? A: We know he is one of the Oceanic 6 becasue it was revealed in a flash forward in "The Beginning of the End".
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