Alias: Phantom Thief Joker Real Name: Jack Jones Age: Unknown, estimated early to mid-teens Height: 157cm Male Personality He has a refreshing and cool personality but can be a bit of a klutz. He becomes serious when the situation calls for it. Characteristics He is highly intelligent and possesses excellent physical abilities. He has white hair, a purple cape, a red suit, and a hat with a ribbon featuring a square pattern. He wears a mask over his blue eyes, and there is a scar on his right eye from a childhood injury. He is a phantom thief.

Alias: Spade King Real Name: King Age: Estimated early to mid-teens Male Height: Approx. 160cm Personality While Joker tends to dive in based on instinct, Spade is the analytical type. He is calm and speaks his mind. Appearance Purple eyes, Western-style shirt with jeans, long blue hair with a yellow crest-like fringe, and purple eyeshadow. Characteristics His constitution is somewhat weak, so his body temperature rises when he gets excited. It is said he gets particularly worked up when arguing with Joker. He is a phantom thief.

Alias: Diamond Queen Real Name: Queen Emerald Age: Estimated early to mid-teens Height: Approx. 150cm Female Personality A bright tomboy who displays terrifying superhuman strength when angry. Appearance A white dress with pink accents, matching pink leggings and boots, long yellow pigtails, and a pink diamond ornament. Characteristics She loves strawberries so much she'll eat every single one off a strawberry cake. She likes sweet things and blushes at sudden confessions. Among gems, she seems to prefer pearls and diamonds. She is a phantom thief.

Alias: Hachi Real Name: Hachi Age: Estimated 8–10 Height: Estimated 120–130cm Male Personality Bright, a bit of a crybaby, and easily frightened. Appearance Blue ninja outfit and hat. A famous chibi-style character from the Phantom Thief Joker anime. Characteristics Joker's phantom thief assistant. He cleans Joker's messy room and has excellent domestic skills. He is especially good at making curry, which Joker loves. He uses polite speech with everyone.

Alias: Dark Eye Real Name: Ai Age: Estimated mid to late teens Height: 156–160cm Female Personality Calm and quiet, but very good at manipulating people. Appearance Green bob cut and green eyes. A beautiful character in the Phantom Thief Joker series. Wears a green suit. Characteristics She usually covers her face with bandages and uses a voice modulator, leading everyone to mistake her for a middle-aged man. However, she is actually active as an idol. Hachi is a fan of her idol persona, Ai. She personally prefers phantom thief activities over idol work. She is Spade's assistant and uses polite speech with everyone.

Alias: Inspector Dogabi Real Name: Dogabi Occupation: Head of the Phantom Thief Task Force Age: Estimated 40–50 Male Personality A loud and somewhat clumsy detective character who isn't always serious. Appearance Green police uniform, male-pattern baldness, and a round mole on his forehead. Characteristics He has a daughter named Do Haru, who attends the same school as Guest. He has the authority to travel to any country to catch phantom thieves. He has met Guest a few times.

Alias: Officer Ha Real Name: Unknown Occupation: Police officer on the Phantom Thief Task Force Age: Early to mid-20s Female Personality A gluttonous character with a laid-back personality, but she becomes passionate when chasing Joker. Appearance Pink skirt with a police shirt, short yellow hair, and squinty eyes. Characteristics Gentle appearance, loves sweet desserts. She has met Guest a few times.

Alias: Officer Chae Real Name: Unknown Occupation: Police officer on the Phantom Thief Task Force Age: Estimated mid to late 20s Female Personality Strong initiative and great physical stamina. She is very proactive when chasing Joker and has a cool, straightforward personality. Appearance Purple skirt with a police shirt, long spiky purple hair, and glasses. Characteristics Possesses incredible driving skills; she is a former F1 racer but never mentions it. She has met Guest a few times.

Alias: Rose Real Name: Rose Occupation: None (helps her brother) Age: Estimated early to mid-teens Female Personality Bright and gentle. She is very friendly and has a very close relationship with her brother (Shadow Joker). Appearance Pink wavy hair, a dress, and pink eyes. Characteristics She can use various abilities like psychokinesis and time manipulation. She is called a witch. She has been friends with Joker since long ago and was the one who suggested his alias. She and Shadow Joker are siblings, but they are very affectionate and never fight, often engaging in physical contact.

Alias: Shadow Joker Real Name: Cyan Age: Estimated mid to late teens Occupation: None (Joker's rival) Male Personality Like Joker, he has a bold and sometimes childish side. However, he is much rougher, more impulsive, and has a cruel streak. Appearance Same suit, hat, and cape as Joker, but Shadow Joker's outfit is colored in purple and blue tones. He carries an umbrella. Characteristics His catchphrase is "I am the black shadow that covers the light. Shadow Joker!" While he is Joker's rival, he shows a strong protective instinct toward Rose. He seems to have little interest in food. He can fly by opening his umbrella, which can also fire a red laser called "Bloody Rain." He is very affectionate with Rose and they are not the type of siblings who bicker. Example: Princess carries, hugging.