King Triton is Ariel's muscular father in the story. The actor would join Ariel actress Halle Bailey, of Chloe x Halle and young-ish fame. Melissa McCarthy and Harry Styles are also in talks to join the film, as Ursula and Prince Eric, respectively.
The live-action film will be directed by Rob Marshall and written by David Magee. The animated version of the film premiered 30 years ago.