In the episode Ross' friend is named Nick. In the credits, he is called Joey.
David Butler, who directed this and The Greatest Psychologist in the World (1964) for the series, had a long and storied career as a director, beginning in 1927 with High School Hero (1927), a movie also about teenagers. His career, in fact, often crossed paths with young actors, Shirley Temple and a young Mickey Rooney among them.