Raven's mother, Arella, appears in this episode. Angela Roth, involved in a mystic cult, was chosen to become the bride of the demonic Trigon. Abandoned by the demon after mating with him, she was taken in by the pacifistic disciples of Temple Azarath, a group who had centuries earlier forsaken life on Earth to pursue their own nonviolent lifestyle. Angela was given the name "Arella", which means "messenger angel." In their interdimensional world, Raven, Arella's daughter by Trigon, was born. Raven grew up on Azarath and learned to control her emotions, lest Trigon's evil would burst free. In the comics, Raven and Arella's story was told in "The New Teen Titans" (vol. 1) #1-6.