One of the greatest strengths "The Sea Beast" brings to the table is its stellar voice cast. Alongside its energetic animation, the film's performances imbue each character with emotion, humor, and pathos. This creates a strong foundation for the larger-than-life sensibilities needed for such a larger-than-life story. While no cast confirmation is out yet for "The Sea Beast 2," it's not too far of a stretch to ponder who we'll be hearing in the next animated tale.
Key to it all is the duo of Karl Urban as hard-headed sailor Jacob and Zaris-Angel Hator as infectiously adventurous Maisie. The actors' chemistry is endearing and colorful, and their ensuring journey of trust and understanding gives the film its beating heart. So, bringing them back for the sequel is a no-brainer. Additionally, it would make sense to bring back former antagonists Captain Augustus Crow and Sarah Sharpe, voiced by Jared Harris and Marianne Jean-Baptiste, respectively, to explore how their characters are adapting to the changing world.
One character we may not see in the follow-up is the titular sea beast, Red. While not confirmed, Chris Williams has expressed a willingness to exclude the leviathan. When asked about Red's return by The Hollywood Reporter, Williams said, "Can I say ... maybe? One of the things that is true about story is that it always evolves. Dramatically, even ... Almost anything I say now, in four years, can be completely different."