Spoil

Old Man Spoil: originally nicknamed Old Man with a big wound was often mistaken to be a Zombie but is in fact a human being. He appeared in chapter 448, after witnessing Luffy, Zoro, Franky, Robin and Sanji beating up the Zombies at the graveyard, he begged them to beat Gecko Moria. Later he revealed that Thriller Bark is actually a giant ship.

He appeared again to thank the crew for defeating Moria