Sarah Manning (Tatiana Maslany) in Orphan Black season 5 episode 8. Photo Credits: Ken Woroner/BBC AMERICA
Sarah
Where we last left her: Mourning Mrs. S, posing as Rachel, and giving Helena a life-saving transfusion in Neolution’s old wing.
Likelihood of surviving the finale: 8. Sarah is the series’ protagonist and too smart to go down without a fight, just like her mother. There is a chance she’ll sacrifice herself for Kira and/or her sestras, but I think Ms. Manning is pretty safe.