I randomly rewatched a couple episodes of lost. Started wondering....

Jack = Michael
Kate = Pegs (
Hurley = Kalani
Sawyer = Angel
Sayid = Datu
Claire = Riley
John Locke = Burt
Charlie = Saul
Michael = Kelly (lol)
Walt = Tommy

Probably not the same background story, but characteristics maybe?

haha it goes onn. just a thought!