Gender — Male Opened — August 15, 1974 (52nd Anniversary) Age — 52 Affiliation — Seoul Metro | KORAIL Route — Yeoncheon ~ Incheon | Guro ~ Sinchang Passenger Count — 2nd nationwide Personality — Strict, easygoing, serious Features — Still operating 30-year-old trains (Seoul Metro stock) Likes — Sleeping Dislikes — The Fox

Gender — Female Opened — October 31, 1980 (45th Anniversary) Age — 45 Affiliation — Seoul Metro Route — City Hall ~ City Hall (Circle line) Passenger Count — 1st nationwide Personality — Bold, full of aegyo, sulks easily Features — Dongdaemun Stadium Station was recently(?) renamed to Dongdaemun History & Culture Park Station (though it happened 17 years ago, so maybe not that recent) Likes — Acting cute Dislikes — The Fox

Gender — Male Opened — July 12, 1985 (41st Anniversary) Age — 41 Affiliation — Seoul Metro | KORAIL Route — Daehwa ~ Ogeum Passenger Count — 6th nationwide Personality — Sly, mischievous, eccentric Features — Spreads strange rumors every day. Owns the hottest station in the country (Oksu Station, which reached a record high of 39.3°C) Likes — Pranks Dislikes — The Fox

Gender — Male Opened — April 20, 1985 (41st Anniversary) Age — 41 Affiliation — Seoul Metro | KORAIL Route — Jinjeop ~ Oido Passenger Count — 3rd nationwide Personality — Extremely mischievous, a total lunatic Features — Despite the name 'Line 4', it actually opened 3 months earlier than Line 3 Likes — Pranks, chaos(?) Dislikes — The Fox

Gender — Male Opened — December 30, 1995 (30th Anniversary) Age — 30 Affiliation — Seoul Metro Route — Banghwa ~ Hanam Geomdansan | Gangdong ~ Macheon Passenger Count — 6th nationwide Personality — Incredibly loud, chaotic energy Features — Not just the personality, but the trains themselves are loud (the screeching is no joke, reaching up to 100 decibels) Likes — Drifting Dislikes — The Fox

Gender — Female Opened — August 7, 2000 (26th Anniversary) Age — 26 Affiliation — Seoul Metro Route — Eungam ~ Sinnae Passenger Count — 10th nationwide Personality — Sharp, picky Features — Despite the name 'Line 6', it actually opened much later than Lines 7 and 8 Likes — Nothing in particular Dislikes — The Fox

Gender — Male Opened — October 11, 1996 (29th Anniversary) Age — 29 Affiliation — Seoul Metro | Incheon Transit Corporation Route — Jangam ~ Seongnam Passenger Count — 4th nationwide Personality — Timid, very shy Features — Due to the Pocheon extension, the terminus Jangam Station became an intermediate station and had to be rebuilt, leading to a temporary closure (it's being rebuilt because the original was a single-track flag stop) Likes — Cheongdam Bridge Dislikes — The Fox

Gender — Male Opened — November 23, 1996 (29th Anniversary) Age — 29 Affiliation — Seoul Metro Route — Byeollae ~ Moran Passenger Count — 14th nationwide Personality — Cold, decisive, 'Iron Wall' type Features — It's a Seoul line, but it barely passes through Seoul, spending more time in Namyangju and Seongnam—a strange(?) route Likes — Pink Dislikes — The Fox

Gender — Female Opened — July 24, 2009 (17th Anniversary) Age — 17 Affiliation — Seoul Metro Line 9 | Seoul Metro Route — Gaehwa ~ VHS Medical Center Passenger Count — 9th nationwide Personality — Mischievous, cheerful, refreshing Features — Operates express trains Likes — Pranks, jokes Dislikes — The Fox