The Vampire Diaries has founds it Greta.
《吸血鬼日記》找到扮演Greta（Luka)的人選嘍。

Former American Idol contestant Lisa Tucker, who finished 10th on season five, will debut next month as Luka's sister, the young witch Klaus has been reportedly holding hostage.
在《美國偶像》第五季中獲得第十名的選手Lisa Tucker將會扮演Luka的妹妹Greta，并在下個月播出的劇集中首次登場。Greta是Klaus用來威脅巫師Luka父子的人質(zhì)。

Greta will appear in at least two episodes, but we’re hearing that she may actually appear in four — including the big finale.
Greta將會出現(xiàn)至少兩集，但是據(jù)說她實際上將在四集中出現(xiàn)——包括第二季的大結(jié)局。

Greta will first show up on April 21, the same installment during which we'll meet Joseph Morgan as Klaus. Her magical character is described as "cool, hip, smart," and "a bit of a thrill-seeker."
Greta將會在4月21日（美國時間）播出的那一集中首次登場，和Joseph Morgan扮演的Klaus在同一集中登場。她的性格可以用“酷、潮、聰明，還有點兒愛找刺激”來形容。