Seoyeon Jang is a British-Korean actress who has appeared in several K-drama rom-coms. Seoyeon Jang grew up between South Korea and England. She trained in both acting and classical dance at the secondary school ArtsEd in London, before relocating to Korea. In 2024, she earned a graduate degree from Korea University. Jang made her acting debut in 2019, with a role on the Korean web series One Fine Week. She went on to appear in supporting roles in romance K-dramas like Stock Struck, Love Is for Suckers, and Heartbeat, as well as the thrillers Doctor Lawyer, Snowdrop, and Good Partner. She also had a small role opposite her Beef co-star Song Kang-ho in the 2021 film Emergency Declaration. Before 'Beef,' she played a secretary in another Korean-English thriller series. Beef season 2 isn't Jang's first time starring in a joint production between the U.S. and South Korea. Last year, she played Moon, the polished secretary to spy boss Juno Lund in Prime Video's Butterfly.