It's important to note that the actress, Samantha Smith (who played the daughter of Robert Wagner's character) was the little 5th grader who wrote the famous letter to the Premier of the Soviet Union in 1983. Samantha was invited to visit the Soviet Union by Yuri Andropov. She and her family did make the trip despite controversy and upon their return, Samantha wrote a book recounting her experience. She was offered the part in Lime Street and was tragically killed in a plane crash during the first season.