Abiko Samejima

Aasu Masamune

A.J. Sebastian

Agemochitaro

Ageha Hijiri / Cure Butterfly

Agatha June

Aganzo

Agares Picero

Aes/Alice Machias

Aeka

Adrienne

Adol Christen

Adilicia Ren Mathers

Adele Balfette

Adatara's Father

Adam Miurhead/Jack the Ripper

Adam

Action Mask

Acram

Achika

Ace

Abuelo Moto (Yugi's grandfather)

Acces Time

Abraham Gray

Abu Dhabi

Abraham

Abel Lanzard

Abe no Yasuaki

Abe no Sōsei

Abbot Jikei