In the English version, Kaiba has a certain contempt for Yugi's group of friends: he refers to them constantly with derisive nicknames such as "the dweeb patrol" or "the geek squad", and is fairly condescending and scathing to everyone, with the exception of Mokuba, the only one he consistently cares about and shows his softer side around, going so far as losing a duel so as to not endanger him.

Also, Kaiba dislikes other people using his cards, namely his "[[Blue-Eyes White Dragon]]" (his favorite and [[signature card]]; notably, he uses its motif to decorate a large portion of his personal effects - e.g., [[Kaiba Land]], his jet, and his clothing). This is shown in [[Yu-Gi-Oh! - Episode 001]] when he rips up [[Solomon Muto]]'s Blue-eyes White Dragon after winning it so that it could never be used against him, and also in [[Yu-Gi-Oh! - Episode 136]] when Kaiba becomes very angry due to Joey using his "Blue-Eyes White Dragon" in their Duel. Kaiba goes so far as to attack Joey's "Blue-Eyes White Dragon" with his own, destroying both in the process, to prevent Joey from using it for another turn. (He even says angrily, "I'm the only one with the skills necessary to wield a Blue-Eyes!" while doing so.) He also despises Pegasus' "[[Blue-Eyes Toon Dragon]]", saying it strips the original of all its pride. According to [[Kazuki Takahashi|Takahashi]], Kaiba's obsession with the "[[Blue-Eyes White Dragon (character)|Blue-Eyes White Dragon]]" stems from the feelings between [[Kisara]] (the girl whose Ka housed the Blue-Eyes) and his ancient Egyptian incarnate, [[Priest Seto]] <ref>[[Yu-Gi-Oh!]] Bunkoban Volume 21</ref>.