From Wikipedia, the free encyclopedia Sarah Chang (Chinese: 張學仁) is an American actress, producer, stunt coordinator and martial artist. Chang is best known for her work in the titular role in the DJI/Wanda film, The Teacher (2018), Blood Hunters: Rise of the Hybrids (2018), Karen Wu in Circle of Bones (2019), Mei in The Trigonal: Fight for Justice (2018), and for her stunt coordination work in Gandarrapido: The Revengers Squad (2017). Description above from the Wikipedia article Sarah Chang, ...