Eleni was first played by Melina Kanakaredos, who was of Greek descent. When she left the show, she was on NYPD Blue and was in a few films as well.
After Melina left Guiding Light, the part of Eleni was played by Jennifer Roszell. She later was on Law & order.
I loved Eleni and Frank together as well; really hated it when they divorced.