Actress best known for Farmland Diary; winner of the grand prize at all three broadcasters' acting awards

| Life | 1951 |
| Era | 현대 |
| Clan | 제주 고씨 |
Go Du-sim (高斗心, born 1951) is an actress born in Jeju City, of the Jeju Go clan. She attended Jeju Nam Elementary and Jeju Girls' middle and high schools, started performing in classical dance in high school, and is said to have been inspired to act when the actor Shin Seong-il stayed in a hotel near her school while filming on Jeju; she then moved to Seoul.
She debuted in 1972 as a member of MBC's 5th open-audition class. She appeared on MBC's Farmland Diary from 1980 to 2002 as the eldest daughter-in-law, Yeongnam's mother. She played the merchant Kim Man-deok in the drama Jeonghwa (1977), won the Grand Bell Best Supporting Actress for Jealousy (1983), and the Korea Film Producers Association Best Actress award for Shining Moment (2021).
She won the grand prize at KBS (1989 for Circle of Love, 2004 for Prettier Than Flowers, 2015 for Please Take Care of My Mom among others), MBC (1990 for Dancing Gayageum and 2004 for Hangang Song) and SBS (2000 for Deok-i), and is described as the only actor to hold the grand prize at all three. She also shared the 1993 Baeksang TV grand prize and received the Eungwan Order of Cultural Merit in 2020. Samseonghyeol, birthplace of her clan's founder Go Eul-la, is in her hometown of Jeju City.
Raised in Jeju City, she debuted via MBC's open auditions in 1972 and built her career with shows such as Investigation Chief.
On Farmland Diary (1980-2002) she played the eldest daughter-in-law, a role that made her a familiar image of the Korean mother.
She is described as the only actor to hold the grand prize of all three broadcasters' acting awards, and received the Eungwan Order of Cultural Merit in 2020.
She has a daughter and a son, the actor Kim Jeong-hwan.