Grace Park (born March 14, 1974) is a Canadian actress who played Cylon model Number Eight, especially the significant copies Sharon "Boomer" Valerii and Sharon "Athena" Agathon on Battlestar Galactica, as well as Shannon Ng in the Canadian television series teen soap Edgemont. Park starred as Officer Kono Kalakaua in the CBS television series Hawaii Five-0, from 2010 until 2017. Since 2018, she appears in the television series A Million Little Things.
Born in Los Angeles, Park moved with her family to Canada when she was 22 months old. She was raised in the Vancouver neighbourhood of Kerrisdale. Park was born to Korean parents. She graduated from Magee Secondary School in 1992 and holds a degree in psychology from the University of British Columbia.
At age 25, Park was cast as high school student Shannon Ng on the Canadian teen soap opera Edgemont. She appeared in the miniseries Battlestar Galactica in 2003 and continued as the same or related characters in subsequent series and films.