Fans of NCIS: Los Angeles star Daniela Ruah may have noticed that she sometimes appears to have two different colored eyes while portraying Field Agent Kensi Blye – and they wouldn't be wrong.

The 39-year-old actress – who recently shared her concerning family history – revealed that her unique eyes are caused by a birthmark, known as nevus of Ota, which means one of her eyes is darker than the other. Back in 2011, Daniela opened up about her condition, at first joking that it was caused by getting Barbie's hand stuck in her eye when she was a child.