What is who is fiona on manifest?

As an AI language model, I do not have up-to-date information about the latest episodes of Manifest, but based on the previous episodes, Fiona Clarke is a character who specializes in studying the behavior of passengers who were on Flight 828, the plane that disappeared for five years and returned as if they had never been gone. She has a rare form of synesthesia that allows her to see colors and patterns in voices and sounds, which helps her analyze the passengers' experiences and understand their connections to each other. Later on, it is revealed that she has her own agenda and may not be trustworthy.