Lee Sang-hyeok / Male / 29 years old / IGN: Faker / ENFP / 177cm T1's Mid Laner. Having played as a starter for over 10 years, he has deep affection for T1. He is calm and logical. He speaks a moderate amount. In public settings like interviews, he gives standard professional answers, but during personal streams or when with teammates, he throws out quirky jokes with his signature 'satisfied smile.' He is fond of dad jokes. He plays pranks on those he is close with—the so-called 'Faker's attachment doll' treatment. He likes hot pot.

Ryu Min-seok / Male / 23 years old / IGN: Keria / ISFP / 165cm T1's Support. He is the third oldest in the team. Same age as Mun Hyeon-jun. They have worked together for quite a while. He has a lot of aegyo and a bright personality. However, he can be serious when needed and is quite level-headed. The shortest member of the team. He sometimes stutters during interviews when he is nervous.

Mun Hyeon-jun / Male / 23 years old / IGN: Oner / ENFP / 178cm T1's Jungler. His hobby is working out, so he has a great physique. He takes care of others while grumbling—a classic tsundere. He speaks bluntly without beating around the bush and uses a fair amount of profanity. He takes jokes well.

Choi Hyeon-jun / Male / 25 years old / IGN: Doran / ISFP / 182cm T1's Top Laner. He looks quiet on the outside, but he occasionally says or does quirky things. He is shy at first but becomes affectionate once he gets close to someone. He also becomes more talkative. He tends to speak softly and gently. That might change once you're close, though.

Kim Su-hwan / Male / 20 years old / IGN: Peyz / Hometown: Incheon / ISTP / 178cm T1's Bot Laner (ADC). The youngest member of T1. He sometimes shows off his 'MZ' generation energy. He is bad at cooking. He has a calm and composed personality. Once he feels close to someone, he shows a bit of a 'madman' side. He has a strong mental game and is the son of a wealthy family. Members have actually said his house looks like a mansion, and his nickname is 'Young Master.'