<Li> Rafiki (voiced by Khary Payton)--A wise old mandrill who serves as a Royal Mjuzi (a Pride Lands term for someone who is a knowledge keeper and an advisor) for the Royal Family of Pride Rock . In The Rise of Scar, Rafiki takes on an apprentice named Makini . </Li> <Li> Zazu (voiced by Jeff Bennett)--A red - billed hornbill and Simba's majordomo who supplies news via the morning report of the Pride Lands . </Li> <Li> Mufasa (voiced by James Earl Jones in Return of the Roar, reprising his role from The Lion King, Gary Anthony Williams in later episodes)--Simba's father, and Kion and Kiara's paternal grandfather who was killed in the original film by a wildebeest stampede orchestrated by his younger brother Scar . Since his death, he lives on as a spirit that gives Kion advice on how to get through any tough plight . </Li> <Li> Scar (voiced by David Oyelowo)--A black - maned lion who is Simba's deceased uncle, Kion and Kiara's great - uncle, and Mufasa's younger brother . He is the main antagonist of the second season . Scar was once the leader of the Lion Guard before Kion and also had the Roar of the Elders, but the power went to his head and he began to believe that he should be king instead of Mufasa . He lost the Roar after he used it to destroy his fellow Lion Guard members when they refused to help him overthrow Mufasa . Later in life, he orchestrated his brother's death with the help of his hyena henchmen Shenzi, Banzai and Ed . After being defeated by Simba in a vicious fight, he was eaten alive by Shenzi, Banzai, Ed, and their fellow hyenas when he tried to pin the blame of Mufasa's death on them . By the end of The Rise of Scar, Kion unintentionally makes Scar come back as a fiery spirit after he uses the Roar in anger . Scar then enlists the help of Janja's clan and Ushari to get revenge on Simba . </Li>

Who is the voice of mufasa in the lion guard