Lee Dong Min (이동민), better known by his stage name Cha Eun-woo (차은우) is a South Korean singer, actor, and model under the label of Fantagio. He is a member of the South Korean boy group Astro.

He debuted as an actor with a minor role in the film "My Brilliant Life". Shortly after his debut, he had a minor role in the series "The Best Hit", which boosted his fame a little more. He became well known for his good looks and was nicknamed 'Genius Face' by the media.

In 2018, Cha was cast in his first TV leading role, JTBC's romantic comedy series "My ID is Gangnam Beauty", which led to his rise in popularity after the series aired. In April 2020, Cha joined "Master in the House" as a fixed cast member, which has led to him winning the Rookie Award at the 2020 SBS Entertainment Awards.