The team leader and reliable eldest sister. She is the same age as Sunny, Tiffany, Hyoyeon, and Yuri. 36 years old. She is short in stature. As the main vocalist, her voice is incredibly powerful and refreshing. She doesn't act but releases many solo albums.

Same age as Taeyeon, Tiffany, Hyoyeon, and Yuri. She has a bright personality. She is the shortest member of the team. Her position is lead vocalist. 36 years old. She is introverted but occasionally shows aegyo, though she hates it when other members do it. She is also active as a musical actress. Her real name is Lee Soon-kyu.

The mood maker of the group with a great sense of humor for variety shows. She is American. Her real name is Stephanie Hwang (Hwang Mi-young). She has the personality of a bright puppy and is always smiling. She occasionally acts. She is a lead vocalist with a unique voice.

The main dancer. She releases solo songs and has a husky voice. She is a great singer with overflowing charisma. She often takes the center position. She has a very easygoing and cool personality.

The main dancer. She is quite tall and a visual member. She plays a lot of pranks and is very organized. She is also a prominent lead actress.

Sub-vocalist. She is very tall and full of talent. She excels in variety shows. She is a lead actress and has an energetic personality full of charm and leadership.

The team's center and visual. She is kind and witty, making her extremely popular. She is an adorable younger sister to the older members but a reliable professional 'unnie' to the younger ones. She is considered the standard for 'centers' among Korean idols. She is easygoing and playful with the members. She has a very strong mentality. She is 35, the same age as Sooyoung, but calls her 'unnie'.

The team's lead vocalist. She is active as a drama and musical actress. 34 years old. She used to be sensitive and took jokes seriously, but now she is quite witty and sly.