She made her acting debut as a child actress in a bit part in Dear Ends (1993), Summer Showers (1995) and Star in My Heart (1997).

[2][3] She later left South Korea to study at Tenafly High School in New Jersey, United States.

During her time with the group, she passed a high school qualification exam, the College Scholastic Ability Test, and was accepted by Kyung Hee University, majoring in theater and film.

[8] She also became part of MBC's entertainment news show Section TV, as a "pop correspondent," debuting on November 21, 2008.

The same year, she became a host of MBC Every1's I Love Pet alongside fellow member Kang Ji-young.

[17] Then in her first major supporting role, Han portrayed Choi Suk-bin in the period drama Jang Ok-jung, Living by Love (2013).

[20] Also, from 2013 to 2014, Han and fellow member Park Gyu-ri served as hosts of the music program The Show.

[21] In January 2016, Kara was disbanded after Seungyeon, Park Gyuri and Goo Hara decided not to renew their contract.