Carol Ferris

Within DC Comics continuity, Carol Ferris is introduced as the longtime love interest of Hal Jordan. When the Zamaron race discovers that Carol is in love with Green Lantern (a servant of their ancient rivals, the Guardians of the Universe), they abduct her and infuse her with a gem known as the Star Sapphire; transformed and brainwashed, she is ordered to destroy Hal. Over time the Star Sapphire persona has been removed and restored on multiple occasions (for example, the Spectre extracts the gem in Green Lantern vol. 3 #119), and Carol also develops an alternate subconscious identity known as the Predator, later revealed in comics to be one of several emotional entities that power the Lantern Corps and specifically the Star Sapphires.

Carol Ferris is presented as a human woman and in early character design her appearance was based on Elizabeth Taylor. Sources describe Carol in her ordinary role as an aerospace executive and pilot. The provided excerpts document that when infused she is 'transformed' by the Star Sapphire gem/persona; the texts supplied here describe the gem and persona occupying or leaving her body but do not include a full visual description of the Star Sapphire costume or detailed transformed appearance in these excerpts.

As a host for the Star Sapphire gem/persona, Carol has been subject to possession, brainwashing, and direct orders (for example being ordered to destroy Hal Jordan after infusion). The Star Sapphire presence can be contained within a gem, can (re)possess Carol, can be extracted and detained (the Spectre removes the gem in Green Lantern vol. 3 #119), and can be purged by other powerful beings. The Predator identity associated with Carol is portrayed in the comics as an emotional entity that corrupted her and influenced her to commit violent acts (notably influencing the killing of Katma Tui). Carol also functions in ordinary human capacities—executive leadership at Ferris Aircraft, hiring Hal Jordan, serving as administrator at Mount Thunder and as a team member with Extreme Justice—when not acting under the direct control of the Star Sapphire persona.