- Jason Momoa Arthur Curry / Aquaman
- Ben Affleck Bruce Wayne / Batman
- Patrick Wilson King Orm / Ocean Master
- Yahya Abdul-Mateen II David Kane / Black Manta
- Dolph Lundgren King Nereus
- Temuera Morrison Tom Curry
- Nicole Kidman Atlanna
- Vincent Regan Atlan
- Amber Heard Mera
- Randall Park Dr. Stephen Shin
- Pilou Asbæk