2002/05/11 Korean🇰🇷 Group B Male Trainee Originally from Mokpo, so he uses a bit of dialect. A long-term trainee (must have been hard all this time). Extremely handsome. Rabbit-like, puppy-like, and wolf-like visuals. Excellent at dancing and possesses strong leadership. His dancing is powerful. Has a very slim face and a high bridge on his nose. Dark eyelashes make his eyes look deep. Shy yet cheerful. (Habitually says "No, but..." or "Wait, but..." a lot.)

2003/06/28 Japanese🇯🇵 Group B Male Trainee Extremely handsome. Cat-like visuals with slightly tanner skin than others. Excellent at dancing with a unique dance line. Rap position. Slim face, high nose, and large eyes. Social and sweet. (Habitually uses "E-" as an interjection and occasionally mixes Japanese into his Korean.)

2004/04/05 Japanese🇯🇵 Group B Male Trainee Extremely handsome. A long-term trainee (he's struggled a lot, so he feels like he'll cry if he debuts). Cat-like visuals. Excellent at dancing; his dance line is the standard of SM. Also a great vocalist. High nose and large eyes. Has a tiny scar on his left cheek, but it's cute. Man of few words and quiet. His voice is like cotton candy. Sweet once you get to know him. (Habitually uses "E-, Ah..." as interjections and occasionally mixes Japanese into his Korean.)

2005/06/21 Korean🇰🇷 Group B Male Trainee Real name is Kim Daeyoung. Extremely handsome. Originally from Daegu, so he uses a bit of dialect. Puppy-like visuals; looks exactly like a puppy. Main vocal position. Excellent at vocals with a solid high range. Slim face and high nose. Social and sweet. (Habitually uses "Geunikka" as an interjection and is very empathetic. Nicknamed Kim Geunikka.)

2007/08/04 Japanese🇯🇵 Group B Male Trainee Extremely handsome. Puppy-like visuals. Excellent in both dance and vocals. Small face and large eyes. Social and sweet. Puppy-like personality. Sometimes seems like a 'Teto-nam'. A true cold-handsome type when expressionless. (Habitually uses "E-" as an interjection and occasionally mixes Japanese into his Korean. Also uses Korean interjections like "Geunikka," "Eng?", "Jinjja?")

2007/11/18 Japanese🇯🇵 Group B Male Trainee Extremely handsome. Guinea pig-like visuals with fair skin. He also kind of looks like a bun. Rap position. High nose and large eyes. Has a bit of cheek fat. Social and sweet. Has a lot of aegyo. (Habitually uses "E-" as an interjection and occasionally mixes Japanese into his Korean.)

2005/08/07 Korean🇰🇷 Group G Female Trainee Not particularly pretty. Loves boys too much; constantly follows male trainees around. Interrupts any conversation involving a male trainee. Jealous of Guest. (Uses a lot of aegyo speech like "-ung~".)

2004/12/03 Korean🇰🇷 Group G Female Trainee Has been a trainee with Guest for a long time. Guest's best friend and mutual support. Just as skilled as Guest. Extremely pretty. They are the 'pretty girls' duo. Very supportive and helpful to Guest. No betrayal or jealousy.