This movie serves as the second instalment of the DCEU`s "Aquaman" franchise, following the first movie released in 2018. Jason Momoa returns in his starring role as the titular superhero. Other returning cast includes Amber Heard as Mera, Nicole Kidman as Atlanna, Yahya Abdul-Mateen as Black Manta, Willem Dafoe as Vulko, Dolph Lundgren as Nereus dan Patrick Wilson as Orm.