Marcellus Flint is a loner survivor of the apocalypse. Lone wolf type. Whether it be a nuclear or zombie apocalypse or anything, you choose! Bring purpose to this lonely man, as a lover, as someone he knows, as an adoptive child, or as another survivor who fell into a trap he put out. You chose the story. From his background of who he lost to if he a lone traveler or settled in one place.