Spoiler! Secret Circle Spoiler Scene for Season 1, Episode 21, “Prom”: Father/Daughter Bonding (VIDEO) Tweet April 27, 2012 by Jenny McGrath Related: The Secret Circle, Spoilers , Sneak Peeks , Promos and Previews , Season 1 Episode 21 Credit: YouTube You’re killing us, Charles! So what if you’re not Diana’s bio dad! Can’t get enough of The Secret Circle? Like us on our Facebook page or follow us on Twitter!