Sea Monsters
Years  ?
Known Members Marquis
Chef Savage
Mate Squiddybeard
Poop & Deck
Behemoth of Brine
First TV Appearance  ?
Part  ?
Allies Lava Monster Army
Forest Monster Army
Stone Monster Army
Enemies Nexo Knights
Leader Marquis de Seaweed
Status Alive

The Sea Monsters are humanoid sea creature monsters summoned via the Book of Monsters. They have not appeared in Nexo Knights outside the books.


The Sea Monsters served Monstrox before his defeat at the hands of Merlok. Like the Forest Monsters, they have a small variety of monsters in their group.


Main article: Category:Sea Monsters images
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