The characters come from different time periods, are born in different countries, and speak different languages. However, all characters in the group are in Yuugi's time period in Domino City, Japan and they can speak Japanese. This means those from the past or future got here either by time traveling or some other way. This permits characters to speak to each other. Below is a list of the group's characters listed in sections of their time periods, countries where they are born, and their native languages. Some characters are mixed, meaning they are more than one race. Examples are the fraternal twins, Ryou and Amane Bakura, who have a Japanese father and an English mother. Multiracial characters are listed under the countries they were born in.
Dartz’s time period
Time: 10,000 years before Yuugi’s time period
Place: Atlantis
Language: Atlantian
Dartz
Iorei
Ironheart
Chris
Timaeus
Critias
Hermos
Yami Yuugi/Atem’s time period
Time: 3,000 years before Yuugi’s time period
Place: Egypt
Language: Archaic Egyptian
Yami Yuugi/Atem
Akhenamkhanen
Akhenaden
Mahaado
Priest Seto
Karim
Shada
Isis
Siamun Muran
Mana
Kisara
Teana
Shaadi
Bobasa
Thief King Bakura
Yami Bakura
Anubis
Abidos the Third
Tragoedia
Alexander the Great's time period
Time: About 2,330 years before Yuugi’s time period
Place: Macedon, Greece
Language: Koine Greek
Alexander the Great
Haou Juudai’s time period
Time: ? years before Yuugi’s time period
Place: Neo Space
Language: ?
Haou Juudai/Supreme King
Yubel
Yuugi Mutou’s time period
Time: Present
Place: Domino City, Japan
Language: Japanese
Yuugi Mutou
Katsuya Jounouchi
Anzu Mazaki
Hiroto Honda
Miho Nosaka
Sugoroku Mutou
Seto Kaiba
Mokuba Kaiba
Shougo Aoyama
Mai Kujaku
Shizuka Kawai
Insector Haga
Dinosaur Ryuuzaki
Ryouta Kajiki
Ghost Kotsuzuka
Mary
Isono
Ryuuji Otogi
Esper Roba
Noa Kaiba
Gozaburo Kaiba
Daimon
Yakou Tenma
Gekkou Tenma
Reiko Kitamori
Place: England
Language: English
Ryou Bakura
Amane Bakura
Place: USA
Language: English
Pegasus J. Crawford
Cyndia Crawford
Arthur Hopkins
Rebecca Hopkins
Keith Howard (Bandit Keith)
Richie Merced
Place: Egypt
Language: Arabic
Marik Ishtar
Yami Marik
Ishizu Ishtar
Rishid Ishtar
Place: ?
Language: ?
Depres Scott
Place: France
Language: French
Raphael
Place: Italy
Language: Italian
Amelda
Miruko
Place: Australia
Language: English
Valon
Place: Germany
Language: German
Siegfried von Schröder
Leonhart von Schröder
Place: China
Language: Chinese
Vivian Wong
Place: England
Language: English
Alex Brisbane
Juudai Yuki’s time period
Time: About ten years after Yuugi’s time period
Place: Japan
Language: Japanese
Juudai Yuki
Shou Marufuji
Hayato Maeda
Samejima
Daitokuji
Tome
Ryou Marufuji
Asuka Tenjouin
Fubuki Tenjouin
Jun Manjoume
Daichi Misawa
Chosaku Manjoume
Shoji Manjoume
Momoe Hamaguchi
Junko Makurada
Kagemaru
Rei Saotome
Takuma Saiou
Kenzan Tyranno
Emi Ayukawa
Mizuchi Saiou
Giese Hunt
Yusuke Fujiwara
Kouyou Hibiki
Midori Hibiki
Place: England
Language: English
Edo Phoenix
Place: ?
Language: English
Professor Cobra
Place: USA
Language: English
Austin O'Brien
Amon Garam
Principal MacKenzie
David Rabb
Reggie MacKenzie
Place: Scandinavia (probably Norway)
Language: Norwegian
Johan Andersen
Place: Australia
Language: English
James "Jim" Crocodile Cook
Place: Italy
Language: Italian
Professor Cronos de Medici
Place: France
Language: French
Napoleon
Martin Kanou