Characters in Jeremy Fink

The main characters in the novel "Jeremy Fink and the Meaning of Life" by Wendy Mass are Jeremy Fink, a 12-year-old boy who receives a mysterious box on his birthday containing four keys, and Lizzy Muldoun, his best friend who helps him unlock the secrets of the box. Other key characters include Jeremy's father, mother, and the quirky Mrs. Oswald who runs a unique antiques store.