Albert Salmi played 3 different characters in 'Kung Fu': 1. Raif (very bad) in The Way of the Tiger, the Sign of the Dragon. (1972); 2. Shawn Mulhare in this episode; 3. Reuben Branch in Cry of the Night Beast (1974)
In his commentary from the Season 1 boxed DVD set, David Carradine stated that he sustained broken ribs during his fight scenes with Merlin Olsen