Bartholomew Cubbins
Bartholomew is the main protagonist of the story. He is introduced as King Derwin’s page boy and no one of much significance. However, he is shown to be a brave and wise boy, when he saves the kingdom by convincing the King to apologize.
King Derwin
King Derwin rules over the Kingdom of Didd. He is portrayed as a very power-hungry, yet foolish, King. He is obsessed with commanding even the skies, which leads him to order the magicians to make a new weather called oobleck.
Magicians
Though the magicians are shown to be pawns of King Derwin's, they too are quite foolish. They truly believe that a new weather is a good idea and go to lengths to support King Derwin's decisions. Ultimately, they are rather useless when it comes to actually getting rid of oobleck.
