Has a variety of foreign accents at his disposal, including French, Italian and Russian.
He and his ex-wife, Julianna McCarthy, have two children: Thea Eileen (Thea Constantine) and Brendan Neil (Brendan Constantine).
He is a Greek American. His parents were Greek immigrants.
Was a good friend of Telly Savalas, starring with him in many television programs such as "American Playhouse: My Palikari (#1.17)" (1982) and "Kojak" (1973).