Part 1 :
The Vampire Diaries Season 1
Nina Dobrev as Elena Gilbert and Ryan Gilbert
Paul Wesley as Stefan Salvatore
Ian Somerhalder as Damon Salvatore
Steven R. McQueen as Jeremy Gilbert
Matt Davis as Alaric Saltzman
The rest of the cast of The Vampire Diaries as themselves.
......
I do not own The Vampire Diaries or it's cast, that all belongs to Julie Plec. The only character and one's storyline I do own is Ryan Gilbert.
And at the beginning of Unknown Twin, the show will show a lot of Elena and some of Ryan before they know about one another... Which isn't until Ryan and Alaric come to Mystic Falls. Please be warned.