Suggestions by @idontknow

Loki

as Jeff Ward in Fancasting the One Piece Live Action's cast in other stuff

The Joker

as Jeff Ward in Fancasting the One Piece Live Action's cast in other stuff

Frozone (Lucius Best)

as Jacob Gibson in Fancasting the One Piece Live Action's cast in other stuff

Falcon

as Jacob Gibson in Fancasting the One Piece Live Action's cast in other stuff

Jax Briggs

as Jacob Gibson in Fancasting the One Piece Live Action's cast in other stuff

Green Lantern (John Stewart)

as Jacob Gibson in Fancasting the One Piece Live Action's cast in other stuff

Static Shock

as Jacob Gibson in Fancasting the One Piece Live Action's cast in other stuff

Human Torch (Johnny Storm)

as Taz Skylar in Fancasting the One Piece Live Action's cast in other stuff

Iron Fist (Danny Rand)

as Taz Skylar in Fancasting the One Piece Live Action's cast in other stuff

Satoru Gojo

as Mackenyu in Fancasting the One Piece Live Action's cast in other stuff

Scorpion (Mortal Kombat)

as Mackenyu in Fancasting the One Piece Live Action's cast in other stuff

Samurai Jack

as Mackenyu in Fancasting the One Piece Live Action's cast in other stuff

Zuko

as Mackenyu in Fancasting the One Piece Live Action's cast in other stuff

Carlos Oliveira

as Iñaki Godoy in Fancasting the One Piece Live Action's cast in other stuff

Zorro

as Iñaki Godoy in Fancasting the One Piece Live Action's cast in other stuff

Emperor Kuzco

as Iñaki Godoy in Fancasting the One Piece Live Action's cast in other stuff

Alejandro (Total Drama)

as Iñaki Godoy in Fancasting the One Piece Live Action's cast in other stuff

Percy Jackson

as Iñaki Godoy in Fancasting the One Piece Live Action's cast in other stuff

Son Goku

as Mackenyu in Fancasting the One Piece Live Action's cast in other stuff

Sasuke Uchiha

as Mackenyu in Fancasting the One Piece Live Action's cast in other stuff