Poker Face Season 2, Episode 12
"The End of the Road"
Writer: Laura Deeley
Director: Natasha Lyonne
Cast: Natasha Lyonne, Justin Theroux, Lili Taylor, Patti Harrison, Haley Joel Osment, Taylor Schilling, Simon Helberg, Rhea Perlman
To be fair, if Charlie Cale couldn't tell Alex was lying, I'll forgive myself for not seeing this twist coming either. Maybe I'm too much of a Patti Harrison fan, but I am both devastated and quite tickled to learn that Alex was big bad of the season.