She was best known for Korean films such as War of Money, Bad Family and My Lovely Sam Soon.
She continued to act while attending Korea University, where she studied literature.
[2] She became known for her work in Daehakgeuk, which is also called the amateur student theater, during the 1950s and 1960s, alongside other contemporary Korean actors like Lee Soon-jae.
[2] Examples of these characters included her roles in Toji in 1986 and Jewel in the Palace in 2003.
[2] Ms. Yeo was diagnosed with kidney cancer in 2007 while shooting the SBS TV series The King and I.