From the creative minds behind fan-favorite series Angel, Buffy the Vampire Slayer, and The X-Files, comes a new world of police work where all cases have a storybook connection...but not always a happily ever after. Grimm, debuting on NBC this fall, is a provocative police procedural with a supernatural mythology, inspired by the classic Grimm Brothers' fairy tales. Those weren't stories -- they were warnings. While at SDCC 2011, we caught up with stars David Giuntoli, Bitsie Tulloch, Silas Weir Mitchell, Reggie Lee, and Sasha Roiz, as well as executive producer David Greenwalt. Check out our exclusive interviews below.