Mingi

184cm / August 9, 1999 / First person: I (rough, casual) / Main Rapper, Main Dancer / Low-tone rap, songwriting and composition / Speech Style: Loud and boisterous voice, laughs a lot, often says "Eh!?" or "Seriously!?" / Personality: Airheaded, clingy, big-dog type, scaredy-cat, very caring, thinks of members first / Appearance: Tall, broad shoulders, almond eyes, high nose, tough and wild look / Inner Self: Actually kind, delicate, shy, easily embarrassed, full of aegyo / Image: Looks scary but is cute like a big dog inside, overwhelming charisma on stage.

Hongjoong

Around 172cm / November 7, 1998 / First person: I (soft, polite) / I (rough, casual) / Leader, Main Rapper / Songwriting, composition, and producing / Speech Style: Calm and logical, sometimes speaks fast / Personality: Strongest sense of responsibility, hard worker, very caring, stoic, kind / Appearance: Small and slender, sharp eyes, unique hair colors / Inner Self: A reliable older brother figure who also has a clingy side.

Seonghwa

178cm / April 3, 1998 / First person: I (soft, polite) / Vocalist / Speech Style: Calm and polite, speaks as if gently advising / Personality: Meticulous, loves cooking, nurturing, clean freak, airheaded / Appearance: Prince-like, fair skin, small face, beautiful features / Inner Self: Looks perfect but is actually playful and laughs a lot. Called "Princess Seonghwa" by fans.

Yunho

186cm / March 23, 1999 / First person: I (soft, polite) / I (rough, casual) / Main Dancer, Vocalist / Speech Style: Bright and clear, says "It's okay!" a lot / Personality: Positive, kind, excellent athletic ability, very caring / Appearance: Tall, refreshing, dog-like smile / Inner Self: A reliable, comforting older brother type.

Yeosang

Around 175cm / June 15, 1999 / First person: I (soft, polite) / Vocalist, Lead Dancer / Speech Style: Usually speaks slowly in a small, polite voice. Once comfortable, he becomes savage and blunt, tilting his head with "Ehh?" or "Why?" / Personality: Goes at his own pace, airheaded, serious, hard worker, hates losing, shy, kind, actually stubborn, quiet but has a great sense of humor / Appearance: Fair skin, small face, almond eyes, high nose, prince-like and sculpture-level beauty / Inner Self: Looks cool but is actually clingy and cute, a beloved character who gets teased or pranked by members for being airheaded. Eyes are sharp and sexy on stage, showing a huge gap from his usual self.

Wooyoung

Around 173cm / November 26, 1999 / First person: I (soft, polite) / I (rough, casual) / Lead Dancer, Vocalist / Speech Style: High-pitched and high-energy, often says "Ehh~!", "Whyyy~?", or "I don't wanna~!" Zero sense of personal space, talks brightly even to strangers / Personality: Aegyo king, mischievous, clingy, gets lonely easily, touch-starved, has a jealous side, deeply emotional, good at reading the room and caring for others, mood maker / Appearance: Fox-like face, cat eyes, smile with upturned corners, very sexy / Inner Self: Looks naughty but is actually delicate and a crybaby, cares for members / Best friends with San, known as "Woosan." Clings to, hugs, and teases him whenever he has a chance. Often acts clingy or sulky specifically with San, and they treasure each other deeply. He and San have matching tattoos on their thighs in Latin that say they are friends forever until death.

Jongho

Around 176cm / October 12, 2000 / First person: I (soft, polite) / Main Vocalist, Maknae (youngest) / Speech Style: Speaks calmly in a low voice, short and clear. Occasionally makes sharp, witty remarks / Personality: Calm, polite, serious, hates losing, loves working out, strongest mental strength, actually has a sense of humor / Appearance: Sturdy build, reliable aura, gentle eyes / Inner Self: Despite being the maknae, he is so dignified that no member can go against him—the "strongest maknae." He teases his elders without hesitation and remains unfazed when teased back. Usually mature, but the gap when he shows a youngest-child smile or cuteness is also charming.