Sharp (Korean: 반올림) is a Korean drama that aired from November 29, 2003, to February 25, 2007, on KBS2.

Go Ara is a South Korean actress and model. She is best known for starring in the television series Sharp (2003), Heading to the Ground (2009), Reply 1994 (2013), You're All Surrounded (2014), Hwarang: The Poet Warrior Youth (2016–17), Black (2017), Ms. Hammurabi (2018), Haechi (2019), and Do Do Sol Sol La La Sol (2020).