Queen Campanella
A widowed queen with an orange grove
Pretty, childless and kind, she visits Maciuś in prison every day for the permitted fourteen minutes, brings him his canary and his mother's photograph, and asks the kings to give him to her. Maciuś's refusal is what makes him decide to escape. She dies horribly on the island of Fufajka, eaten by some of the warriors who came to rescue him; Maciuś later makes a little grave for her beside his canary's.
Colonel Dormesko
The famous sleepyhead
A heroic defender of the "Fourth Fort of Death" who dislikes children and sleeps through almost anything, which is why he is chosen to escort Maciuś — and why Maciuś escapes from his train. Obeying his orders to the letter, he delivers the trunk and the canary to the island. Pardoned, he later lives there as Maciuś's easy-going guardian, signing every request and taking photographs, until he is recalled.
Lord Pux
The "iron old man" of diplomacy
A silent diplomat with a pipe who tames the quarrelling kings by making them repeat themselves at ever earlier hours. He keeps perfect minutes, calls Maciuś a king when others will not, and tells him: "Your Royal Majesty has managed to master the situation."
The young king
Maciuś's enemy
He hates Maciuś, objects to every motion he makes, orders a doctor to declare him mad and finally has him kidnapped and imprisoned under a false name. Stripped of his conquests and later abandoned by his own generals, he rides to Maciuś under a white flag and kneels to him. Maciuś forgives him, and his people declare a republic.
Marquis Amary
The new commander of the island
A young, handsome captain of lancers sent to the island as a punishment for duelling and insulting a general. He buries Maciuś in circulars and complaints, stops the guards' dinner until Maciuś signs, and then, drunk one night, confesses that he is a distant cousin, deeply unhappy and in debt. "I thought the captain was wicked, but he is only very wretched," Maciuś writes.