Han Chae-young made her acting debut in the 2000 horror film The Record. She received wider exposure for her antagonist role in the 2000 KBS2 melodrama Autumn Fairy Tale, though she was criticized for her acting skills. Her acting breakthrough came in 2005 when she was cast to play the titular character in the KBS2 series Delightful Girl Chun-hyang, which recorded an average viewership rating of 23.4 percent. She won the Popularity Award as well as the Best Couple Award with her co-star Jae Hee at the 2005 KBS Drama Awards for her work in the series. In 2008, she was nominated for Best New Actress at the 45th Grand Bell Awards for the movie Love Now. In 2009, she made a special cameo appearance in the hit KBS2 drama Boys Before Flowers. In 2011, Han Chae-young expanded her career in China and became part of the adventure comedy movie A Big Deal. She also starred in several Chinese dramas, including Dream in Blue in 2012 and Revive in 2016. In 2018, she returned to Korean dramas via the melodrama A Pledge to God, in which she was nominated for a Top Excellence Award at the MBC Drama Awards.

Han Chae-young, who earned the nickname “Korea’s Barbie doll” for her doll-like beauty, hosted FashionN’s beauty show Take Care of My Dressing Table in 2015. The program featured styling tips straight from beauty experts. In 2017, she was cast in the KBS2 reality show Sister’s Slum Dunk, where she became part of a temporary girl group called Unnies.

Han Chae-young’s English name is Rachel Kim. She spent her childhood years in a Chicago suburb after her family moved to the United States. On June 2, 2007, she married Korean-American businessman Choi Dong-joon. Their son was born on August 28, 2013.