What is One Life to Live's Trevor St. John Doing to Damon on The Vampire Diaries?! (PROMO)


One Life to Live favorite Trevor St. John is heading back to primetime. The ex-soap hunk has landed a guest spot on The Vampire Diaries.


The actor is playing Dr. Whitmore, who will be using Mystic Falls bad boy Damon (Ian Somerhalder) for some kind of mad science experiment on vampires! St. John’s episode is scheduled for Dec. 5. To get a bloody taste of what's to come, watch the clip below!

The Vampire Diaries airs Thursdays at 8 pm EST on The CW.