We are happy to announce that Briana Buckmaster (Supernatural, ) will be on the Supernatural fan show The Crossroads. Briana plays the cheerfully non-jaded Sheriff Donna Hanscum on the hit television show Supernatural. Briana can also be seen in the upcoming short film Homeowner directed by Ryan Curtis (VFX Supervisor Lucifer).   The interview will air on Monday February 22 and will be…