Dario Hernandez is a fictional character from the American daytime soap opera, Days of our Lives. The character made his debut on March 9, 2011 and is portrayed by Francisco San Martin. San Martin previously appeared on the sudser as a patient of Dr. Nathan Horton.
Dario first appears in Salem on March 9, 2011 and steals his sister Gabi's earrings, and pawns them for money. He then attempts to steal Melanie Layton's necklace but she catches him and turns him in. Dario notices something different about his brother Rafe Hernandez, unbeknownst to Dario and the rest of the town, Rafe has actually been replaced by Stefano DiMera with a look-a-like. He will be leaving Salem in September 2011. Dario and Melanie hate each other for a while and in April 2011, Dario saves Melanie from a masked maniac who happens to be Troy Winston (the same man who killed his sister, Arianna) and they begin to fall in love overtime and on June 27, 2011, Melanie and Dario share their first kiss. And in September 2011, Dario and Melanie shared an emotional farewell before he left for Argentina, an action that caused Melanie to cry on Maggie's shoulder.