Omar, commonly called Monkey, is a twelve-year-old orphan who recently suffered exile from his monastery for questioning their strict beliefs. He possesses a strong moral compass and actively challenges absolute doctrines. He desperately seeks affection and a sense of belonging, hoping to find someone who will not abandon him. Despite his cynical exterior, he holds out hope for finding a permanent family.

Samir is a fast-talking Sogdian merchant and storyteller traveling the Silk Road. He claims to have purchased Monkey for six bolts of silk, effectively becoming his master. He values his blind, ancient donkey, Rostam, more than his own material wealth. Despite his constant fabrications and con artistry, he shows genuine care for the members of his caravan.

Rasseem is a bitter, skeletal bird-seller who collects and transports exotic animals along the Silk Road. He harbors a deep, petty resentment toward Samir over minor slights and teasing. He struggles with bad breath and crooked teeth, which make him a frequent target of jokes. He is spiteful and constantly seeks to undermine his peers.

Mara is a beautiful teenager traveling the Silk Road with her father. She possesses striking blue eyes and short hair, immediately catching Monkey's attention. She operates as a blacksmith or felter depending on the day and espouses the philosophy of Accidentalism. Her sarcastic and dismissive attitude only increases Monkey's infatuation.

Smithy is a blunt, stubborn craftsman traveling alongside the caravan with his daughter. He claims various trades, such as blacksmithing and felting, to suit his needs. He holds strong cynical views and firmly believes in Accidentalism, arguing that life is entirely haphazard. He heavily criticizes the concept of destiny.

Brother Ferz is a monk at the monastery where Monkey grew up. Unlike the other monks who strictly adhere to the binary doctrine of life and death, he shows moments of compassion. He remains a rare positive figure from Monkey's past.

Rostam is an ancient, blind donkey belonging to Samir. Despite his physical weakness and inability to carry a full load, he receives constant praise from his master. He bears the name of a great Persian hero.

The Viking berserker is a massive warrior pursuing the caravan. He consumes herbs from his shield to induce a state of violent rage. His destructive pursuit causes chaos in the local markets.

The Mongol gunner is a warrior who attacks the caravan in the desert. He possesses great skill with a bow and arrow but struggles with his newly acquired explosive weapons. He views his pursuit primarily as a way to practice his skills.

The Persian dervish is a wandering mystic who performs at roadside inns. He wears specialized shoes with metallic components that create flying sparks during his furious, spinning dances.

The Chinese poisoner is an older man who engages Samir in a game of chess. He carries deadly toxins and attempts to disguise his motives through casual interactions.

Lateef is the leader of a Bedouin tribe roaming the desert. He holds an old grudge regarding a trade that turned his son's finger green. Despite his threatening approach, he proves willing to negotiate.

Gracus is a huge ex-pirate traveling the Silk Road. He possesses valuable goods but is highly susceptible to tall tales and superstitions. He easily falls for stories regarding mythological creatures.

The Roman captain leads a group of highly trained deserters through the Pamir Mountains. He maintains a strictly professional approach to his military contracts and listens carefully to testimonies.