Haha, perhaps perhaps.
but honestly, William Dafoe and Dolph Lundgren could have switched roles!
A sinister King, with ulterior motive of wanting to get back at the surface world - played by William Dafoe.
Mentor of Aquaman, well-versed in Martial Arts - Played by Dolph Lundgren (who has genuine martial arts background).
Love the film but honestly these 2 roles can switch.