Dorothy shares a similarity in behavior, appearance and speech with the android Lal from the episode from the series "". The character shares her name with Dorothy Gale of "The Wonderful Wizard of Oz", a work Konaka references occasionally in his scripts, and the "R" initial is for "Robot", a naming convention used by Isaac Asimov in his works. In the Manga, he has a running gag where he will inquire Roger on paying him, but Roger always manages to avoid it.