2 TV Guide’s Vampire Diaries Bite With Kat Graham (Video) Posted on February 16, 2012 by Ruthie Welcome to Vampire Diaries Online! Want to stay up to date on the latest Vampire Diaries spoilers and news? Then subscribe to our RSS feed. You can also follow us on Twitter! Follow @tvdfansonline TV Guide has posted yet another Vampire Diaries Bite, this time it’s from Kat Graham, when they visit the set! Watch now, and then head on over to TV Guide for more on what’s coming up for Bonnie.