
Louise Fletcher plays Vivian Caldwell in Episode 7, "Barrel Bear." Vivian is the woman who actually went over Niagara Falls in a barrel and lived, before being duped by her then-boyfriend and Millie Marcus. In the meantime, Vivian has been living in seclusion in the backwoods of Niagara Falls, nursing a grudge and biding her time.
Episode 7, "Barrel Bear"