Lizzie's full name is heard for the first time when an angry Jo addresses her as Elizabeth Brooke McGuire.
Hilary Duff's sister, Haylie Duff appears in the role of Kate's cousin, Amy.
In season 1 episode 30, Kate states that she's 14 and older then the rest of the class because she repeated Kindergarten. In this episode, Gordo says she's turning 14. Kate's actual age is referenced in passing by Lizzie's mother at the end of the episode, although Kate herself refuses to acknowledge the truth.
During the scene where Lizzie (Hilary Duff) is being handed overhead by boys at the party, a dummy is used in her place very briefly when she is thrown up in the air.
This episode aired 8 days before Hilary Duff 15th birthday.