As we know Eiichiro Oda is a huge fan of Tim Barton, now we can see how some Barton’s works have influenced three One Piece’s characters:
-Brook is obviously Jack Skeletron (Jack Skellington), but there are also three famed musicians contributing to his look: Jimi Hendrix (Clothes+Fro) + Slash (Hat) + Ozzy Osbourne (Glasses).
-Gekko Moriah is Oogie Boogie not only in appearance but for his hatred of Brook/Jack Skellington, his creepy little minions, and his powers with the help of Doctor Hogback.
-Inazuma, who shares scissor hands with Edward Scissorhands.