The Vampire Diaries returns on Thursday with its midseason premiere, which also happens to be the CW vampire series’ 100th episode.

'The Vampire Diaries' Spoilers

What’s in store for The Vampire Diaries 100th episode? The return of Klaus (Joseph Morgan), for one thing, according to TV Guide. It was announced last fall that the The Originals character would be making his way to Mystic Falls. In “500 Years of Solitude,” Klaus and Caroline (Candice Accola) will have an encounter, according to Zap2It.

That “encounter” between Caroline and Klaus could be Caroline’s way of getting over Tyler (Michael Trevino) – who’s also coming back to town.

New to the area will be Markos. He’s “a charismatic but imposing leader from a faraway land,” according to E! News. “He's super dark, but people can't help but be drawn to him and he's worshipped by his followers.” Markos will be making his first appearance on TVD for Season 5’s 17th episode.

Katherine’s fate will be front and center when TVD returns on Thursday. When the show left off in the midseason finale, she’d just suffered a heart attack and was barely alive.

– Chelsea Regan

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