In Season 5, Corey Bryant is an openly gay sophomore at Beacon Hills High School. Corey is attacked by his boyfriend, Lucas, a Chimera, then he meets Scott's Pack whom he helps to find Lucas before he is killed. He is then abducted then converted by the Dread Doctors, becoming a Chimera himself with traits of a Chameleon. Corey meets fellow sophomore Mason Hewitt along with the Pack, who enlighten Corey of his condition, and he is helped by Mason understand his new abilities and nature, the two beginning a relationship. Corey is killed by the Doctors, then is resurrected by Theo Raeken alongside Hayden Romero, Tracy Stewart and Josh Diaz so Theo can form his own pack. Corey falls under Theo's sway and follows his command out of self-preservation. He resumes pursuing Mason, despite the feud between the two Packs. Due to his feelings for Mason, culminating in him determinedly attempting to protect him once Mason is revealed to be the host for the Beast of Gevaudan, Corey ultimately defects from Theo and alligns with Scott's Pack, wishing to restore Mason to reality. When Mason is saved, he and Corey resume their relationship. In Season 6, the Wild Hunt has come to Beacon Hills, California then multiple citizens are erased from existence and Corey discovers his chameleon abilities are connected to the Hunt, and works alongside Mason, Hayden and lead by Liam Dunbar to investigate the Wild Hunt and save their classmates and the town's people from being erased. Corey is erased from existence by Garrett Douglas using a ghost rider's power, then his powers are used by Douglas to merge the Wild Hunt limbo with the physical realm, so Douglas can fully control the Hunt. He is found by the pack then allows himself be linked to the limbo long enough so the pack can divert the Hunt, and Corey is saved, treated by Melissa McCall. Corey, alongside Mason and Liam, become seniors with Natalie Martin's endorsement, then work to keep one another save when students and citizens begin turning against the pack out of fear.
Corey is vivacious, fun-loving and confident. Despite his neglectful family life, Corey is friendly and has a sweet nature and takes joy in the good of life as he frequents the mixed club Sinema with his boyfriend Lucas.
Underneath this happy-go-lucky exterior, Corey is rather fragile, faint-hearted, being immediately terror-stricken, overwhelmed and frustrated because of the chaos and strife around him and happening to him because of his Chimera conversion, the Doctors' trying to kill him as well as Scott's unwaranted action of invading his memories.
After dying and coming back to life, Corey is broken, traumatized and fearful of dying again. He loses touch with his humanity as seen when he easily gives his allegiance to Theo out of desperation to survive despite Theo's unsavouriness being revealed. Despite his preference for avoiding conflict and fhis overall faintheartedness, Corey eventually regains his confidence and shows a defined sense of affection, being supportive, compassionate and protective of those he cares for as he does everything possible to rescue Mason. He also recommits to his morals in defecting from Theo and fully aligning with Scott's Pack again.
Corey had been making out with his boyfriend Lucas. He got stung by Lucas's scorpion stinger, the flesh on his arm necrolized and no amount of medical intervention would help. Scott was able to use the pain siphon on him to give him some respite. Corey quickly recovered. He told Scott and Kira where to find Lucas.