Suggestions by @andymayer

King K. Rool

as Marshall D. Teach in Different fictional characters as One Piece characters recast

Hordak

as Issho in Different fictional characters as One Piece characters recast

Discord

as Aramaki in Different fictional characters as One Piece characters recast

Hawk Moth (Gabriel Agreste)

as Borsalino in Different fictional characters as One Piece characters recast

Toffee (Star Vs The Forces of Evil)

as Kuzan in Different fictional characters as One Piece characters recast

Lord Dominator

as Boa Hancock in Different fictional characters as One Piece characters recast

Star Butterfly

as Vivi in Different fictional characters as One Piece characters recast

Scrooge McDuck

as Whitebeard in Different fictional characters as One Piece characters recast

Ruby Rose

as Bonney in Different fictional characters as One Piece characters recast

Daffy Duck

as Mihawk in Different fictional characters as One Piece characters recast

Rick Sanchez

as Brook in Different fictional characters as One Piece characters recast

Sunset Shimmer

as Robin in Different fictional characters as One Piece characters recast

Yakko Warner

as Usopp in Different fictional characters as One Piece characters recast

Stitch

as Chopper in Different fictional characters as One Piece characters recast

FAKE

as Jinbe in Different fictional characters as One Piece characters recast

Lapis Lazuli

as Nami in Different fictional characters as One Piece characters recast

Donkey Kong (Character)

as Franky in Different fictional characters as One Piece characters recast

Mordecai (Regular Show)

as Sanji in Different fictional characters as One Piece characters recast

Shadow the Hedgehog

as Zoro in Different fictional characters as One Piece characters recast

Bugs Bunny

as Shanks in Different fictional characters as One Piece characters recast