Kramer's approach of Fred Savage was inspired by a real experience of writer Larry Charles. Charles once approached Richard Dreyfuss in a bookstore to pitch a script. According to Charles: "I was so excited I started to hyperventilate. I said, 'Don't be scared of me.'"
First appearance of Ruth Cohen as the later self named cashier Ruthie Cohen in the diner Monks. Ruth would go on to become the most frequent character on the show besides the main four, due to that she was present in basically every scene at Monks from this episode and forward, although not always seen, depending on what camera angles where used in the diner. She however only received on-screen credit a few times, when she had a couple of lines of dialogue during the last seasons.
In keeping with the theme of not revealing Kramer's first name (at least until "The Switch" episode in the sixth season) the copy of Kramer's treatment found by the police is torn in such a way that his first name isn't shown.