Grace Park: Grace Park. Actress: Battlestar Galactica. Grace Park (born March 14, 1974) is an American-Canadian actress. She gained recognition as Lt. Sharon 'Boomer' Valerii and Lt. Sharon 'Athena' Agathon on Battlestar Galactica (2004), as well as Shannon Ng in the Canadian television series teen soap Edgemont (2000). From 2010 to 2017, Park starred as Officer Kono Kalakaua in the CBS television series Hawaii Five-0 (2010), which debuted on September 20, 2010....