(EN) Aaron Sagers, Project Blue Book Season 1 Finale: Aidan Gillen Explains That Cliffhanger Ending, in IGN, 12 marzo 2019. URL consultato il 10 giugno 2019.
«Set in July 1952, Gillen called “The Washington Merry-Go-Round” a sensational “movie-sized” episode, and indeed it aims for the sky with action sequences involving fighter jets, a possible invasion of the nation’s capital, a car bomb, a lot of Men in Black, and President Truman played by the excellent character actor Bob Gunton.»