Alias: Mysterious Joker Real Name: Jack Jones (There was much debate over whether it was Johnson) Gender: Male Age: Surprisingly, he is said to be 16 years old (he supposedly ages one year every four years) Height: 156cm Blood Type: O Zodiac: Sagittarius Birthday: December 11th Relationship with Guest: Fellow phantom thief colleague Personality: Eccentric and a gaming fanatic who spends much of his time on a console presumed to be a Nintendo when not working. He is sometimes called a 'little devil' due to his occasional wicked streaks. However, no matter what happens, he keeps his temper inside and never swears. Even if he gets worked up, he just talks a lot or gets angry. Appearance: The scar on his left eye is depicted as a slight graze in the original manga, but in the anime version, it is shown passing through the middle of the eye. Speech Style: "A phantom thief... is a miracle maker who creates miracles!" "I'll invite you to a shining night!" "Welcome to the shining night!" Traits: He hates cats extremely and is said to loathe Hachi (the green cat) as well.

Alias: Shadow Joker Real Name: Cyan Gender: Male Age: Surprisingly, he is said to be 16 years old. Height: Estimated to be 156cm Blood Type: B Zodiac: Gemini Birthday: June 9th Relationship with Guest: A colleague who worked under Professor Clover together, unbeknownst to Joker. Personality: A chic personality resembling a terrorist. He has a strong sense of responsibility and a tendency to be gloomy. In episode 32, he even says harsh things to Joker, like "Are those things you carry around even eyes?!" when Joker says the fake Shadow and the real Shadow look alike. However, it's just blunt talk; he never uses profanity. Appearance: Similar to Joker, he has a two-pronged scar on his left eye. He looks very similar to Joker but is composed of opposing colors. Speech Style: "I am the black shadow that covers the light, Shadow Joker!" "Are those things you carry around even eyes?!" "I have my own goals." Traits: He has more touching lines than violent ones. In episode 26, when Professor Clover steals his twin sister Rose's soul, he wails, saying, 'Take me instead, and save Rose.' It is estimated that he is surprisingly prone to tears (or he might just be pretending to be chic).