Kalua is a low-caste ox-cart driver in *Sea of Poppies*. He rescues Deeti from a widow's pyre and marries her, fleeing together onto the Ibis. Known for his strength, Kalua is instrumental in aiding Deeti and showcasing his intelligence despite societal assumptions about his size.

Bhyro Singh, in *Sea of Poppies*, is the uncle of Deeti’s first husband. He is a powerful figure who arranged Deeti's earlier marriage and is intent on tracking her and Kalua down after they escape.

Zachary Reid is a mixed-race American and a key character in *Sea of Poppies*. Initially a shipyard worker, he becomes the acting captain of the Ibis due to his expertise. He navigates ship politics and personal morality throughout the story.

Serang Ali leads a group of lascars in *Sea of Poppies* and mentors Zachary Reid. A former pirate, his mysterious past and leadership abilities make him a crucial ally on the ship.

Burnham, appearing in *Sea of Poppies*, owns the Ibis and runs a large opium trading company. He is a staunch supporter of free trade and has a forceful personality, prioritizing his interests over others’.

Baboo Nob Kissin, from *Sea of Poppies*, is Burnham’s gomusta. He believes in mystical visions and boards the Ibis, setting plans into motion based on his spiritual interpretation of Zachary as an avatar of Krishna.

Paulette Lambert, in *Sea of Poppies*, is a French botanist's daughter raised in Bengali customs. Seeking freedom from a constrained life, she disguises herself to board the Ibis and flee to Mauritius.

Jodu, a Muslim Bengali boy in *Sea of Poppies*, shares a close bond with Paulette. After losing his boat due to the Ibis, he becomes a lascar and strives for a life at sea, departing with newfound companions.

Neel Halder appears in *Sea of Poppies* as the Raja of Raskhali. Despite his noble status, he encounters legal troubles, leading to his transportation as a prisoner on the Ibis.

Mr. Crowle, in *Sea of Poppies*, serves as the first mate of the Ibis and is known for his harshness and reckless actions that jeopardize his crew.

Captain Chillingworth, the aging captain of the Ibis in *Sea of Poppies*, is weary of the impending opium wars. Despite secretly battling opium addiction, he manages his duties and his morality aboard the ship.