Jennifer Maas TV Business Writer SPOILER ALERT: This interview contains spoilers from the “Poker Face” Season 1 finale, “The Hook,” now streaming on Peacock. “Poker Face” revealed more about the personal life of protagonist Charlie Cale (Natasha Lyonne) than viewers learned throughout the first nine episode of Rian Johnson’s Peacock howdunit series, with the introduction of her sister Emily Cale (Clea DuVall) when Charlie needs a place to hide out after she’s accused of another murder. This is when we discover that Charlie has had a rough history with her sister, and hasn’t seen her in so long that she’s never even met her young niece, Shasta.