Lucas Desmond Horton (ne Roberts) is a fictional character on the NBC soap opera Days of Our Lives. He has been portrayed by Bryan Dattilo from 1993 to 2001. Dattilo reprised the role from 2002 until he quit in 2010. In December 2011, it was confirmed that Dattilo would return to the series in February 2012, as part of the series' reboot. Datillo returned onscreen on February 29, 2012.