Nina Dobrev (CW)

The Vampire Diaries star Nina Dobrev (Katherine/Elena) will be making two guest appearances tomorrow.

At 12.30 AM, viewers can catch her when she stops off at "Late Night with Jimmy Fallon" to give the latest dirt on what's going down with her two characters. Much later in the day, she will be popping up online for a streaming interview with the Associated Press at 3.00 PM EST.

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