Yammy Riyalgo
By far the largest of the current Espada, Yammy Riyalgo is a giant Arrancar with tan skin and a ridge-lined cranium, brown eyes and black hair. He has long, bushy sideburns and a thin ponytail. Aside from that, he is bald. He also has orange eye brows and red markings under his eyes. He wears the standard Espada uniform, with the only difference being that his jacket is always open.
Like all Arrancar, he has a large hole in his chest signifying his previous time as a
Hollow. What remains of his Hollow mask is the jawbone (complete with 8 teeth), which rests on his chin. A tattoo of the number 10, signifying Yammy's rank in the Espada, is on his left shoulder. However, in his released form, the number changes to 0.
Personality
Yammy is portrayed as arrogant and confident in his abilities. He is also quite brutal, as shown when a female Arrancar medic reattaches his severed arm. To test his new arm's strength, he punches the medic's head and destroys it, instantly killing her, and grumbles that his original arm should have split her in two. According to
Szayel Aporro Granz, Yammy has a habit of shouting "suerte" (Spanish for "lucky") when he comes across opponents that will amuse him, such as when he first encountered Ichigo Kurosaki in Karakura Town.
The biggest but not the brightest of the Espada, Yammy relies greatly on Ulquiorra to give him instructions and orders, acting somewhat as his enforcer, though has been shown to function well without him during a subsequent Karakura raid. Rather than using tactics in the battlefield, Yammy prefers just to fight with his brute strength and seems to take joy in killing and hurting others. To grow stronger and kill more efficiently, Yammy rests and eats in his spare time.
He seems to respect Ulquiorra to some degree, wanting to aide the latter during his final fight with Ichigo, also displaying slight surprise after Ulquiorra's death at the hands of
Hollow Ichigo, but the former seemed more shocked at his defeat and disappointed at not being able to participate in the fight than actual concern. Other than Ulquiorra, Yammy has shown that he has no regard for his other allies, such as referring to the other Espada as "trash" (including Ulquiorra), and even going as far as attacking them without warning; he killed the medic that reattached his arm just to test its strength, attacked
Menoly Mallia without an apparent reason (before
Loly Aivirrne lashed out in retaliation and fear), and attacked
Rudobōn while he was fighting against
Rukia Kuchiki (though in Rudobōn's case, Yammy may had blindly struck him because he was angry at
Uryū Ishida for making him fall from the tower).