The actor has died, at the age of 79, reportedly from injuries in a fall. He was a cool dude on TV, starting famously with "I Spy," a show that was famous mainly for the banter between Culp and co-star Bill Cosby (shown above). But Culp always had a little bit of an edge to his charm, which made him suitable for villainous roles -- and made even his good-guy moments a little more interesting than they might have been in the hands of smoother performer. That edge, too, fully blossomed on "The Greatest American Hero," the always-on-the-verge-of-rage FBI agent working with the titular hero, played by William Katt. More splendid banter there.