Simba is a male lion. He is the king of Pride Rock who succeeded Scar. He is the son of Mufasa and Sarabi, and the mate of Nala, with whom he has a son, Kion, and a daughter, Kiara.
Shortly after his birth, Simba was anointed the future king of Pride Rock and presented to the animals of the Pride Lands. Growing up, he was taught by his father, Mufasa, to respect the Circle of Life and thus maintain balance between predator and prey. During this time, Simba's uncle, Scar, used a wildebeest stampede to put Simba in harm's way and thus lure Mufasa into danger. Scar managed to assassinate Mufasa, after which he sent his hyena minions to dispatch of Simba. However, when the hyenas failed to kill Simba, the cub escaped into the desert and took refuge with a meerkat named Timon and a warthog named Pumbaa.
Many seasons later, Rafiki confronted a full-grown Simba and facilitated his communion with the spirit of Mufasa, who implored him to return to the Pride Lands and reclaim his birthright. Simba did as he had been prompted and challenged Scar for the throne of Pride Rock. The lions fought one another for the right to rule the Pride Lands alongside their respective allies, and Simba eventually emerged victorious. Meanwhile, Scar was betrayed and killed by his own hyena minions. Afterward, Simba ascended Pride Rock and became the new king of the Pride Lands.
As king, Simba exiled any lionesses who retained loyalty to Scar to the Outlands. There, the exiles plotted to avenge Scar's death, assassinate Simba, and put Scar's protégé, Kovu, on the throne of Pride Rock. Per Zira's instructions, Kovu saved the life of Simba's daughter, Kiara, and used the seemingly noble act to infiltrate Simba's pride. However, when Kovu fell in love with Kiara, he betrayed and abandoned the Outsiders. A battle soon broke out between the Outsiders and Simba's pride, but Kovu and Kiara intervened and convinced the feuding lions to reunite. In the aftermath of the battle, Simba accepted Kovu back into the pride and approved of his marriage to Kiara.