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.