Pisay Pao is a Cambodian American actress best known for playing Cassandra on the Syfy series "Z Nation." She was born in Thailand after her parents escaped Cambodia at the end of their country's civil war. Pisay's family were eventually sponsored to the US and settled in Seattle, Washington. Here, she attempted to balance her parents' traditional expectations with her love for the performing arts. At the suggestion of a classmate Pisay auditioned for and booked her first feature film. This lead to her first agent and additional film and TV roles in Seattle. Upon moving to Los Angeles in 2011 Pisay booked her first job, working with Oscar Winning Director Alejandro Gonzales Innaritu. This was followed by a series regular role and guest star roles working alongside Scott Bakula, Sir Timonthy Dalton, and Renee Russo.