Scar is an evil Lion who is the main villain from Pooh's Adventures of The Lion King and one of Pooh's first enemies outside from the main Pooh continuity. He plotted to take over the Pride Lands from Mufasa with the help of his minions, Shenzi, Banzai, and Ed. He succeeds in the takeover and the death of Mufasa, but leaves the hyenas to bungle their job in killing Simba, Scar's nephew. Many years later, Simba, with the help of Pooh and pals, returns to battle Scar and defeat him. He dies when the hyenas betray his orders to take him back up the cliff from where he fell and tear him to shreds. But fate has a way to restore the evil dictator, as due to the darkness in his heart, Scar returned as a ghost to aid Makunga, Pete, the cheetahs, and his treacheroushyena henchmen in Pooh, Simba, Timon, and Pumbaa's Adventures of Madagascar: Escape 2 Africa. Scar returned in both the Disneyland and Walt Disney World versions of Winnie The Pooh In Fantasmic!, and as a member of the Inner Circle and in the Walt Disney Word version to destroy Pooh and his friends and Mickey Mouse along with Ash and his friends and the Mighty Morphin Power Rangers. Scar appears in some of the Simba Timon and Pumbaa's Adventures films as he plotted to get Simba and his crew. He sent Quint, Arthur, Cecil, Shere Khan, Tublat, Lord Rothbart, and Dr. Facilier to fight with the heroes.

Due to his death, Scar makes no physical appearance in The Lion Guard, though he appears on a wall mural is heavily mentioned and alluded to throughout the events that unfold.

A bit more of Scar's backstory is also revealed in Return of the Roar. As part of tradition to all second born children of the Lion King, Scar, when he was younger, served as leader of the Lion Guard; a team of lions who would protect the Pride Lands and the Circle of Life, having had a power called the "Roar of the Elders," which, when used, would cause the previous Kings of the Pride Lands to roar along with him. However, the power went to Scar's head and he vainly believed that with this power, he should be king instead of Mufasa. But when the rest of the Lion Guard refused to help him overthrow Mufasa, Scar furiously used his Roar of the Elders to destroy them. Due to using his powers for evil, Scar lost his power completely and descended into depression, becoming shriveled and horrible. This may have been why he needed the hyenas in the first place.

Simba's second born son, Kion, is told of this story, and desperately makes an effort to refrain from using his powers for evil, and becoming a dark figure in the vain of his great-uncle.

Scar will make an appearance in the upcoming special, The Rise of Scar as a spirit. He will be voiced by David Oyelowo. Scar will appear in the flames of a volcano after Kion unwittingly summons him by using the Roar of the Elders in anger.