David has a younger brother (Hon.
Brennan James Callan, Col.) who is a filmmaker, actor, writer, producer, editor, aerial videographer. David's mother (
Virginia Rae Callan) is an actress, executive producer, and Certified Professional Secretary. David's father (
Francis Joseph Callan) is an actor as well as David's younger sister, Ruth Reesor. They are all distantly related to actor/writer/producer
James Wolford Hardin and actress
Jane Wyatt. He had two older brothers that had worked at WLKY TV before he got there and that influenced him to seek employment at the station. Another cousin is actress
Judy Crippin.