Although he doesn't appear on screen, this is the first episode where Zack and Cody's father is present. However, he only appears behind the camera of an old home video. Zack and Cody's father would not make a physical appearance until later in the series.
The pink and black dress Carey is seen wearing is the same dress Esteban dreamed her to be wearing during his fantasy about running the hotel from the previous episode, "It's a Mad, Mad, Mad Hotel"