In Stephen's vision, his father says to him, "Thanatos". Stephen replies that he does not know what it means. Thanatos is the daemon personification of death in Greek mythology and his name has been used by others both in reality and in fiction quite widely.
Both Jarod Joseph (Juergens) and Chelsey Reist (Krysten) go on to play main characters in The 100 (2014). They played Nathan Miller and Harper McIntyre, respectively.