Trivia / The Americans S4E3 - Experimental Prototype City of Tomorrow

• First Appearance: Of Ruthie Ann Miles as Young-Hee, and Rob Yang as her husband Don.
• Harsher in Hindsight: William mentions that as a result of the amount of vaccines against the pathogens he may have been exposed to, he's lost his sense of smell. A few years after the end of the series, loss of smell became common in Real Life as one of the symptoms of COVID-19.