william afton - he killed cassidy and she hates him to the point she turned out to be a vengeful spirit (she had killed him before but he always comes back to life)
susie - soul that was trapped inside chica (she's free now)
fritz - soul that was trapped inside foxy (he's free now)
gabriel - soul that was trapped inside fredddy (he's free now)
jeremy - soul that was trapped inside bonnie (he's free now)
charlie - soul that was trapped inside puppet (she's free now)