The Mark of Evil is an ancient symbol representing great malevolence in the history of the Pride Lands. It appears in the form of a scarred eye. In the early history of the Pride Lands, the Mark was held by a pride of evil lions that attempted to conquer the lands before being defeated by the original Lion Guard. Since then, several lions have possessed it, most infamously Scar.
During a battle with several Outlanders, Kion catches a glimpse of Scar's spirit in a nearby fire. After the fight, he observes the spot of the fire and sees the Mark of Evil marred into the dirt. Rafiki recognizes the symbol as a sign of terrible evil and leaves to consult the paintings of the past for more information.
During the final battle, Kion is bitten by Scar's minion, Ushari, and thus obtains the Mark of Evil. After the defeat of Scar and the death of Ushari, the Mark of Evil disappears from the lava, which cools into solid rock.
Kion begins to wonder if he is turning evil due to his violent mood swings. He gazes into a puddle, where the spirit of Scar appears and mocks him for bearing the Mark of Evil. To this, Kion asserts that he may look like Scar, but he will never act like Scar.
Upon the Lion Guard's return to the Pride Lands, Vitani (who formed her own Lion Guard in their absence) observes that Kion bears the Mark of Evil. This causes her to believe that Kion intends to invade the Pride Lands, leading to a fight between the two groups.
Bearers of the Mark of Evil
|The evil lions of the past||The evil lions of the past are a group of hostile lions who once terrorized the Pride Lands. They were defeated by Askari and his new Lion Guard.||Television||The Lion Guard|
|Strange lion||The strange lion is a rogue lion from the Outlands who attempted to take over the Pride Lands with the help of his cobra minion. He was betrayed and killed by Scar.||Television||The Lion Guard|
|Scar||Scar is the former leader of the Lion Guard before he abused his power and lost the Roar. Later, he became the king of the Pride Lands. He acquired his scar from a cobra who was in cahoots with the strange lion.||Film||The Lion King|
The Lion Guard
|Kion||Kion is the former leader of the Lion Guard. He acquired his scar from Ushari, who was serving the ghost of Scar. Unlike many bearers of the Mark of Evil, Kion fought the venom and sought healing at the Tree of Life.||Television||The Lion Guard|
- In the episode "Cave of Secrets", the painting shows the evil lions of the past bearing the Mark of Evil; however, they do not have scars over their eyes. This indicates that one does not necessarily need to have a scar over their eye in order to bear the Mark of Evil.
- Though Kovu has a scar over his eye, it was inflicted by his mother Zira, not a cobra, and he is never acknowledged as bearing the Mark of Evil by the Pride Landers.
- The Mark of Evil takes a different appearance for each of the three lions who possess it: Scar's is a curved scar across his left eye, the Strange Lion's is a curved scar across the corner of his right eye, and Kion's is two curved scars on top of his left eye and one on the bottom.