As far as I know... there was only one "western" Samurai in the history of Japan. A dutch army officer who got honoured that way. (And japanese words have no S-plural. One Samurai, two Samurai, Three Samurai... )
As the model was born in an "eastern" state, I`d say "caucasian" is more accurate.
Don't Take My Comment As a Offense, Since Caucasians Are The Native People of Europe (American Natives are "red skins"....and so on)And I Read Somewhere That There Were Really Western SamuraiS, More Than One!
The site got pictures, i just need to remeeeeber what i was searching and IF i remember, and then find the site IF i found....] some citations: "The English sailor and adventurer William Adams (1564–1620) seems to have been the first Westerner to receive the dignity of samurai...." "Jan Joosten van Lodensteijn (1556?–1623?), a Dutch colleague of Adams' on their ill-fated voyage to Japan in the ship De Liefde, was also given similar privileges (learn the art of the samurai and become one) by Tokugawa Ieyasu..." "The French Navy officer Eugène Collache fought for the Shogun as a samurai during the Boshin War (1869)..." " the Prussian Edward Schnell served the Aizu domain as a military instructor and procurer of weapons. He was granted the Japanese name Hiramatsu Buhei (平松武兵衛), which inverted the characters of the daimyo's name Matsudaira. Hiramatsu (Schnell) was given the right to wear swords, as well as a residence in the castle town of Wakamatsu, a Japanese wife, and retainers. In many contemporary references, he is portrayed wearing a Japanese kimono, overcoat, and swords, with Western riding trousers and boots...."