Ventus from Kingdom Hearts
Ventus (voiced in Japanese by Kōki Uchiyama and in English by Jesse McCartney) is one of the main characters in Birth by Sleep, and a prominent character in a large amount of the other titles in the Kingdom Hearts video game franchise.
He is one of the characters that actually has their origins even earlier in the timeline, coming from the time of the KHUX characters instead of just BBS like we originally thought. He is also part of the trio of wielders that trained under Master Eraqus, and is the body that Vanitas was pulled from.
Ven has spiked up blonde hair, similar in style to Roxas, and vibrant blue eyes. He wears a multilayered outfit, with a black sleeveless turtleneck, a striped undervest, a split monochromatic cropped short sleeve jacket worn with a black x strap clasped by a silver version of the wielder emblem, a metallic armor patch on his shoulder that forms into the keyblade armor, and an inverted version of Roxas’ wristband. He also has segmented gold and blue waist armor over top of multitoned cuffed capri pants, and armored shoes.
Terra from Kingdom Hearts
Terra (voiced in Japanese by Ryōtarō Okiayu and in English by Jason Dohring) is one of the main characters in Birth by Sleep, and a prominent character in the rest of the Kingdom Hearts franchise.
He is one of the three wielders training under Master Eraqus, before falling to darkness, setting off a huge chain of events.
Terra has a combination of down and spiked up chocolate brown hair, and blue eyes. He wears a skin-tight short sleeve black and grey turtleneck shirt with a red x strap pattern over it, metallic armor on his arm (forms into the keyblade armor), a fingerless glove on one hand, and a black wristband on the other. He wears tan hakama pants with a dark grey upper section, belted by a black belt and clasped with a gold keyblade wielder symbol, and has metallic gold tipped shoes.
Aqua from Kingdom Hearts
Aqua (voiced in Japanese by Megumi Toyoguchi and in English by Willa Holland) is one of the main characters of Birth by Sleep, and a prominent character in the Kingdom Hearts game series as a whole.
She is part of the trio of trainee keyblade wielder under Master Eraqus, and a major plot related reoccurring character continuing on into Kingdom Hearts 3.
Aqua has a predominantly blue color scheme, with her hair and eyes both in similar shades. She wears a sleeveless black turtleneck like the other two, with a underbust corset over top, and a pinkish lavender x strap over her chest, clasped with a silver wielder symbol. She also wears grey fingerless gloves, with white half sleeves over them, topped with her keyblade armor summon bits. Tying into the blue colors, she also wears a white and blue waist drape sash on top of a pair of black short shorts, finished off by black thigh high socks, and silver spiked boot pieces.