A hardworking young porter on the Titanic who befriends Hazel and aids her in learning more about the ship and its surroundings, showing loyalty and adaptability in challenging situations.

A wise and kind older woman who befriends Hazel on the Titanic and imparts valuable lessons about life and curiosity, reflecting her journey from poverty to wealth.

An upper-class girl who befriends Hazel despite their different backgrounds and supports Hazel’s aspirations, symbolizing the breaking down of class barriers through friendship.

The antagonistic couple who plot various schemes aboard the Titanic, with Mr. Mollison ultimately showcasing unexpected bravery, while Mrs. Mollison's interactions create conflict and tension.

Sylvia's stern governess who initially disapproves of Hazel and represents class prejudices, but eventually recognizes and appreciates Hazel’s positive influence on Sylvia.