This is the final appearance of Stanley. He is revealed to have been mutilated and turned into a sideshow geek, similar to Meep from earlier in the season. Stanley's final fate is unclear, but it is reasonable to assume that he dies shortly after the events of this episode, especially in light of what takes place in "Curtain Call".
This is the second and final appearance of actress Jamie Brewer in the role of Marjorie.
Legless Suzi makes reference to the film The Sign of the Cross. This is a 1932 epic directed by Cecil B. DeMille. This movie is also referenced in another season of American Horror Story. In season two, Jessica Lange's character, Sister Jude Martin, screens The Sign of the Cross at the Briarcliff Manor mental hospital to entertain the patients during a freak thunderstorm. 
The film that Elsa Mars plays is the 1932 movie Freaks by director Tod Browning. The movie is from Hollywood's pre-code era and presents actors with actual birth defects playing characters in a carnival sideshow. Themes and plot devices seen in the film are common to those presented in "Freak Show".
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