- Robert is the father of five children: Joseph, Samantha, Joshua, Jason and Rachel Culp.
- Robert is the voice of Dr. Wallace Breen in the popular Half-Life 2 Video Games.
- Robert stands six feet, two inches tall.
- Robert Culp is the father of Joseph Culp.
- Robert would have played J.R in the TV show Dallas if Larry Hagman hadn't returned to the series.
- In 2004 Robert starred in the movie The Almost Guys.
- Robert: (about his character The Colonel in the 2004 movie The Almost Guys) The role of The Colonel was not exactly written for me or the role that I wanted to play, but he was written like an imbecile or kind of foolish.
