Amy Marie Wallace

 portrayed Lee Harvey Oswald's sister-in-law, Vada Oswald.

Biography
Wallace is a Toronto-based actor and musician. She is known for "Woods" (2014) and 11.22.63 (2016). She is a graduate of the George Brown Theatre Program in Toronto. Amy is also a violinist and studied at Wilfrid Laurier University where she earned an honours degree in music.

Source
Amy Marie Wallace on the Internet Movie Database. Retrieved on April 5, 2019.