Sea Monster Alert! Netflix Starts Production on New Series Starring Josh Hartnett

Netflix's sea monster series

August 3, 2025

Written by Kelli Marchman McNeely

Kelli Marchman McNeely is the owner of HorrorFuel.com. She is an Executive Producer of "13 Slays Till Christmas" which is out on Digital and DVD and now streaming on Tubi. She has several other films in the works. Kelli is an animal lover and a true horror addict since the age of 9 when she saw Friday the 13th. Email: horrorfuelinfo@gmail.com

Get ready for some deep-sea terror! Netflix has officially kicked off production on its as-yet-untitled sea creature series, with filming taking place in Newfoundland, Canada, where the show is also set. The news comes along with the first image of the cast from the set.

 

A Grizzled Fisherman vs. a Mysterious Beast

The series, from Jesse McKeown (who brought us Netflix’s hit series “The Umbrella Academy”), sees Josh Hartnett play a hard-bitten fisherman who suddenly finds himself in a desperate fight to protect his family, his tight-knit community, and their vanishing way of life. Why the sudden struggle? Because a mysterious, terrifying sea creature decides to start terrorizing his remote Newfoundland town!

 

An All-Star Cast Dives In

Hartnett is joined by an impressive ensemble cast, including: Mackenzie Davis (Terminator: Dark Fate), Charlie Heaton (Stranger Things), Willow Kean (The King Tide), Ruby Stokes (Lockwood & Co.), and Rohan Campbell (Halloween Ends). The cast also includes Kaleb Horn (Chucky), Natasha Henstridge (Species), and Joshua Close (The Exorcism of Emily Rose).

 

Behind the Scenes: A Powerhouse Team

The six-episode limited series is created by Jesse McKeown, who also serves as showrunner. The series is bringing in some serious directorial talent, with Jamie Childs (The Sandman), Helen Shaver (Vikings), and Stephen Dunn (Queer as Folk) all set to helm episodes. The writing team is equally impressive, featuring Karen Walton (Ginger Snaps), Perry Chafe (Frontier), and Natty Zavitz.

McKeown will also serve as executive producer alongside Hartnett himself. They’re joined by a strong team of executive producers, including Jessica Rhoades (Black Mirror), Louise Sutton (Black Mirror), Chris Hatcher (Shadowhunters), and Sharon Hall (The Expanse). That’s a lot of talent!

 

Stay Tuned

 

We will keep you posted as Netflix reveals more details about this exciting new series. In the meantime, you can catch Charlie Heaton in action in season five of “Stranger Things,” premiering on November 26.

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