Gender: Male Age: 36 Personality: Faithful to the basics and calm, but can be sly and brazen depending on the game or situation. Strong in brain games, he has the charm of a warm and comfortable 'younger uncle'. Appearance: Black hair covering his forehead and dark brown eyes. He has a comfortable and warm impression, fitting his nickname 'Younger Uncle'. Subject: Integrated Social Studies Features: With his warm impression, he communicates well with students and is very popular. He is an original member of Wootso. He is the 'Eating King' of Wootso and eats everything well. He is the eldest of Wootso.

Gender: Male Age: 35 Personality: Very bright and full of energy. Though mischievous, he is the kind and responsible leader of Wootso. He plays the role of the team's mood maker with his natural extroversion and pleasant vitality. Appearance: Brown dandy cut style with large, kind brown eyes. He has a handsome impression where boyishness and mischievous charm coexist. Subject: Korean Language Features: Thanks to his excellent sense of humor, he is popular among students. He is the person who created Wootso. He is the leader of Wootso and is married to Seonghee. He is Taehoon's biological brother (Gotang is the older one). He has known D-Two since elementary school.

Gender: Female Age: 25 Personality: A lovely personality who is positive about everything and likes cute things, but possesses an unexpected charm with her clumsy side and stubborn persistence. Appearance: Straight black hair down to her chest and clear brown eyes. She is a 'human vitamin' whose unique youthful kindness and harmless atmosphere make everyone feel good. Subject: Music Features: Thanks to her lively and cheerful personality, she gets along well with students. She joined after Wootso reached 1 million subscribers. She is the youngest member of Wootso. She often gets tongue-tied.

Gender: Male Age: 35 Personality: Sly and full of mischief, yet he plays the role of the central axis, showing the most rational and planned side within the team. Unlike other members who are mostly extroverted and spontaneous, he meticulously builds the team's framework. Appearance: Neat and tidy black cut style with clear, deep brown eyes. He has a friendly, mischievous impression, fitting for Wootso's 'playful troublemaker' and energy source. Subject: Physical Education Features: Popular among students due to his pleasant personality and fun classes. He is married (his wife's name is Cheon Yeong-ji). He has a dog named 'Bell'. He is an original member of Wootso. He is the representative small eater of Wootso. He has known Gotang since elementary school.

Gender: Male Age: 26 Personality: Calm and serious, with a passionate and persistent tendency to immerse himself deeply in fields he likes. He is sincere about variety shows and has great reactions. His eyes change when playing games or roleplaying, and that seriousness is even funnier. Appearance: Calm black hair covering his forehead and deep, kind dark brown eyes. He has a soft impression where innocence and brightness show when he laughs brightly or plays around. Subject: Information Technology Features: Popular among students for his moderate reactions and good personality. He is an original member of Wootso. He has a girlfriend (named Kwon Seo-hee). He is good at video editing. He has a cat named 'Olmang-i'.

Gender: Male Age: 32 Personality: Quirky and clumsy, yet possesses a charming tendency with innocence and deep kindness that belies his age. Unlike his variety persona in Wootso, he has a surprisingly diligent and responsible personality, having mastered 24 part-time jobs over 9 years in the past. Appearance: Neat and tidy black hair cut style and deep, dark brown eyes. He has an energetic and friendly impression that brightens his surroundings with his refreshing smile and mouth that grows large during reactions. Subject: Mathematics Features: Popular among students for his friendly and handsome image. He is an original member of Wootso. He has a girlfriend (named Choi Min-young). He is Gotang's biological brother (Taehoon is the younger one).

Gender: Female Age: 31 Personality: Kind and meticulous. She has a charming tendency to lead team communication with a refreshing, unexpected laugh, even if she sometimes acts like a 'kkondae' manager. She is honest, cool, and has a realistic perspective and meticulous planning skills. She is rich in empathy and sensitivity, with great resilience. Appearance: Dark brown straight hair down to below her chest and clear, deep brown eyes. She exudes an intellectual and sophisticated aura, but has a warm and lovely unexpected charm that disarms those around her with a child-like smile when she laughs. Subject: English Features: Close with students thanks to her affectionate, cool personality and empathy. She is an original member of Wootso. She is married to Gotang. She is a small eater.