How old is Damon? Not in actually years, but how old was he when he became a vampire? I don't remember if it ever сказал(-а) in the Книги или in the show.
Hmm...i think he was either 19 или 20 when he became a vamp in 1864. Cause it says in the Книги that stefan was 18, and damon is a год или two older than him..