Janja

Janja is the main antagonist of the 2015 TV film, The Lion Guard: Return of the Roar and one of the main antagonists in its 2016 follow-up series, The Lion Guard.

He is a teenage hyena who leads the Outlanders, a clan of hyenas that resident in The Outlands and is an enemy of Kion (the second-born child of Simba and Nala) and The Lion Guard.

Physical Appearence
Janja is an ashen gray hyena with a lighter underbelly, black spiky mane, darker spots, and a black tail with a gray underbelly.

Personality
Like Scar, Janja is a selfish and greedy leader who eats more than his fair share and who has no regard for the Circle of Life. His unabated hunger has made him ruthless and willing to go to exreme measures to satisfy it. His is also shown to be undeniably intelligent. He correctly fears the Roar of the Elders due to knowing how his former boss used it to destroy the old Lion Guard.

The Lion Guard: Return of the Roar
Janja orders his clan members Cheezi and Chungu to capture a honey badger called Bunga (who had entered the Outlands to get his Baobab fruit back) so he can have him for lunch. However, Kion is able to save his friend by unknowingly using The Roar of the Elders which causes Chungu to drop Bunga who then gets to safety.

Later, Janja is informed by his vulture major-domo Mzingo that Kion is forming a Lion Guard to protect The Circle of Life. Seeing that this Lion Guard could be a threat to him and his clan, Janja declares that the clan will strike the Pride Lands that night and sings "Tonight We Strike".

Janja and his clan attack the Pride Lands and cause a gazelle stampede, which Kion's older sister Kiara gets caught in. Luckily, Kion and his Lion Guard (Bunga, Beshte, Fuli and Ono) come to Kiara's rescue by chasing the hyenas away and getting the gazelles to go in another direction before Kion confronts Janja and uses the Roar of the Elders to send him and his clan back to the Outlands, but Janja swears vengeance on Kion and the Lion Guard.

Never Judge a Hyena by its Spots
Janja and his clan are attacking a gemsbok herd, just before The Lion Guard arrive. Kion orders the others to calm down the herd while he pursues the hyenas. But during this, a log snaps under Kion's feet and he falls into a river which sweeps him to the Outlands.

Janja and his clan later appear when they try to attack a female hyena named Jasiri, who had just helped Kion find Flat Ridge Rock in order to escape the Outlands. Luckily, Kion returns and saves Jasiri by scaring Janja and his clan off with The Roar of the Elders.

Trivia

 * Janja is shown to be the leader of his clan, but in real life, hyenas are led by females (like Shenzi was in The Lion King).
 * It has been revealed that Janja and his clan are descendants of Shenzi, Banzai and Ed's clan.
 * It could be possible that Janja is based on Banagi, a hyena who was set to be an antagonist in the early drafts of The Lion King. Like Janja, Banagi was a hyena who was leader of his clan despite being male.