Lloyd Gough appears here as attorney to Richard Kimble while still appearing as series regular Mike Axford in The Green Hornet (1966).
The African country Ivan Dixon's character represents as ambassador is never mentioned, only referred to as an emerging nation. When this episode first aired in March 1967, there were approximately 44 sovereign nations in Africa, some that had only as recently as 1966 won their independence. The 1960s alone saw as many as 35 African nations gain independence from their colonial overlords. So the unnamed 'emerging nation' Ambassador Unawa represents could be any of several dozen.
Diana Hyland and Barry Morse appeared together the next year in Judd For The Defense: Fall Of A Skylark (1968)