Blake Hood and Alyssa Diaz have landed intriguing roles on The Vampire Diaries Season 4.

According to TV Guide, the actor (90210, The Young and the Restless) and actress (The Nine Lives of Chloe King, Army Wives) will both interact often with Klaus this fall, coming on board The CW smash as a pair hybrids named Dean and Kimberly.

Hood will debut on Episode 5, while Diaz will first shows up on Episode 6.

The last time viewers saw Klaus, of course, he wasn't really Klaus. He was hanging out in Tyler's body, unbeknownst to everyone except Bonnie. Julie Plec, however, has said it won't be long until the characters are switched back.

The Vampire Diaries returns with new installments on October 11.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.