He has also doubled for actors such as Patrick Duffy, Rick Overton, and David Naughton. Three years before Koko worked on Star Trek: The Next Generation, he set a high fall world record by falling 326 feet from the Vegas World Hotel in Las Vegas. [1] Between 1972 and 1974 he won thirty-two medals in track meets throughout the United States. (Star Trek: The Next Generation 365, p. 122)