Introduced in 1992, Dillon is the son of Tracy Quartermaine (Jane Elliot) and her ex-husband Paul Hornsby (Paul Satterfield). Tracy skips town with Dillon in 1993, violating her custody agreement with Paul. In 1996, Tracy and Dillon—played by P.J. Aliseo—are introduced on "The City" and last appeared in the series finale in 1997. In 2003, the character was re-introduced on "General Hospital" played by Scott Clifton. Dillon develops a romance with Georgie Jones (Lindze Letherman) whom he eventually marries. However, the relationship falls apart when Dillon has an affair with and impregnates his stepsister Lulu Spencer (Julie Marie Berman). Clifton vacated the role in 2007 and Dillon was written out of the series making brief returns last appearing for Georgie's funeral in 2007. The actor earned three consecutive Daytime Emmy Award nominations for Outstanding Younger Actor in 2004, 2005 and 2006.