Tress's romantic interest, the son of a duke who prefers a simple life and demonstrates unexpected bravery, later revealed to be Huck the rat, a character who assists Tress on her journey.

Crew members who become a second family to Tress, teaching her about life aboard a ship and supporting her as she learns to embrace leadership.

A narrator and crew member known for his dramatic and playful nature, who hides great power and travels across the worlds in Sanderson’s Cosmere while serving as cabin boy.

Referred to as a vampire by the crew, this character is a Kandra capable of imitating human forms, providing a mysterious connection to Sanderson's Mistborn series.

An antagonist wielding Lightweaving powers, she presents as a distant threat through most of the novel, challenging Tress in her quest.

An antagonist and spore-eater who controls her crew to find a cure for her plight, a formidable pirate captain with her own survival at risk.

Captain Crow's cannonmaster whose manipulation of ship weapons confines the crew to her service, playing a role in the darker piratical elements of the story.