* Mamillius: The young son of Leontes and Hermione. He is a sweet and innocent child who is deeply affected by his father's jealousy and the subsequent separation from his mother. He dies tragically in Act III, Scene III, possibly due to grief or a broken heart.
* Perdita: The daughter of Leontes and Hermione, though raised by the shepherd and his wife. She is a beautiful and kind young woman, known for her gentle nature and love of flowers. She is a central figure in the play's final act, where she is reunited with her parents and marries Prince Florizel.
While Mamillius's role is brief, he is pivotal in setting the tragic tone of the play. Perdita, on the other hand, plays a more prominent role in the later stages of the play, representing hope and renewal.