Patrick Wilson
(King Orm Marius / Ocean Master)
Yahya Abdul-Mateen II
(David Kane / Black Manta)
Michael Beach
(Jesse Kane (Manta's Father))
Tainui Kirkwood
(Young Arthur (3 Years Old))
Tamor Kirkwood
(Young Arthur (3 Years Old))
Denzel Quirke
(Young Arthur (3 Years Old))
Kaan Guldur
(Young Arthur (9 Years Old))
Otis Dhanji
(Young Arthur (13 Years Old))
Kekoa Kekumano
(Young Arthur (16 Years Old))
Andrew Crawford
(Brine King / King Ricou (mocap))
Pearl Grantham
(Ancient Atlantean Woman)
Noa Tsuchiya
(Ancient Atlantean Child)
Jordy Campbell
(Arthur's Classmate (uncredited))