Lanterns, the HBO Max series based on DC Comics, has released its sixth episode titled "Bad Optics." In this episode, John Stewart, the Green Lantern and mentor to Hal Jordan, returns to the fictional town of Rushville—ten years after it was nearly destroyed. His return is prompted by the apparent death of Hal Jordan, setting the stage for a deeper exploration of the DC Universe (DCU). Before attending Hal's funeral, Stewart engages with a character deeply connected to Jordan, which could signal an expansion of the DCU's worldbuilding. The character in question is Carol Ferris, a pivotal figure in Green Lantern lore and Hal Jordan's longtime love interest. Created in 1959 by John Broome and Gil Kane, Carol was introduced as the daughter of aerospace mogul Carl Ferris and a key executive at Ferris Aircraft. She hired Hal Jordan as a test pilot, and the two formed a romantic bond before she was kidnapped and brainwashed by the Zamarons, transforming her into the supervillain Star Sapphire. As Star Sapphire, Carol gained a range of powers, including flight, energy blasts, the ability to create constructs, and the power to heal through love. She has fought against Hal Jordan in her villainous role but later evolved into a more heroic figure, leading the Violet Lantern Corps, which is powered by the emotion of love. In the new episode, Carol Ferris is portrayed by Amie MacKenzie, who has appeared in other television projects like Better Call Saul and Dexter: Original Sin. Her presence in Lanterns may indicate the potential for more Lantern Corps to be introduced in the DCU. The show has already featured characters from the Green, Yellow, and Violet Lantern Corps, with the title card changing from green to yellow suggesting that Sinestro, the leader of the Yellow Lantern Corps, might be about to establish his own corps in the DCU. This development could further expand the universe and deepen the lore of the Lanterns.