Suggestions by @xvic16

Len-Barry Simons

as Chew in One Piece

Score: +2

Jean Henry

as Fullbody in One Piece

Score: 0

Aidan Scott

as Helmeppo in One Piece

Score: +2

Ilia Isorelýs Paulino

as Alvida in One Piece

Score: +2

Jeff Ward

as Buggy in One Piece

Score: +1

McKinley Belcher III

as Arlong in One Piece

Score: +3

Vincent Regan

as Garp in One Piece

Score: +2

Morgan Davies

as Koby in One Piece

Score: +3

Jacob Romero Gibson

as Usopp in One Piece

Score: -2

Taz Skylar

as Sanji in One Piece

Score: +2

Richard Madden

as Bruce Wayne in Batman

Score: +3

Ewan McGregor

as James Gordon in Batman Arkham

Score: +1

Nicholas Hoult

as Edward Nasthon in Batman Arkham

Score: +1

Aidan Gallagher

as Lonnie Machin in Batman Arkham

Score: +1

Alan Ritchson

as Ricky Leblanc in Batman Arkham

Score: +1

Erin Moriarty

as Vicki Vale in Batman Arkham

Score: +1

George Clooney

as Ferris Boyle in Batman Arkham

Score: +1

Mads Mikkelsen

as Victor Fries in Batman Arkham

Score: +1

Josh Gad

as Oswald Cobblepot in Batman Arkham

Score: +1

Colin Firth

as Alfred Pennyworth in Batman Arkham

Score: +1