Nicole Kidman (Atlanna),
Dolph Lundgren (King Nereus),
Julie Andrews (Karathen (voice)),
Willem Dafoe (Nuidis Vulko),
Michael Beach (Jesse Kane (Manta's Father)),
Graham McTavish (King Atlan),
Jason Momoa (Arthur Curry / Aquaman),
Temuera Morrison (Thomas Curry),
Patrick Wilson (King Orm Marius / Ocean Master),
Leigh Whannell (Cargo Pilot),
Randall Park (Dr. Stephen Shin),
Amber Heard (Mera),
Ludi Lin (Captain Murk),
Yahya Abdul-Mateen II (David Kane / Black Manta),
Kekoa Kekumano (Young Arthur (16 Years Old)),
Kaan Guldur (Young Arthur (9 Years Old)),
Otis Dhanji (Young Arthur (13 Years Old)),
Tainui Kirkwood (Young Arthur (3 Years Old)), Tamor Kirkwood (Young Arthur (3 Years Old)), Denzel Quirke (Young Arthur (3 Years Old))