A lot of them didn't use their birth names.
Kat Graham= Katerina Graham
Nina Dobrev= Nikolina Konstantinova Dobreva
Paul Wesley= Pawel Tomez Wasilewski
Matt Davis= Mathew Davis
CZYTASZ
The Vampire Diaries Facts
LosoweThese are just a random collection of TVD facts and the cast facts I found on the internet that I thought were kinda interesting.