Voice cast
Donald Glover as Simba, a young lion prince and the son of Mufasa and Sarabi who grows up to become the future king of the Pride Lands. Glover said that the film will focus more on Simba's time growing up than the original film did, stating that "[Favreau] was very keen in making sure we saw [Simba's] transition from boy to man and how hard that can be when there's been a deep trauma".
JD McCrary as Simba as a cub.
Seth Rogen as Pumbaa, a good-humored warthog who befriends and adopts Simba after he runs away from home. He also becomes one of Simba's best friends. Rogen said, "[a]s an actor, I [...] don't think I'm right for every role—there are a lot of roles I don't think I'm right for even in movies I'm making—but Pumbaa was one I knew I could do well". Favreau encouraged Rogen and Timon's Billy Eichner, who did their voice recordings together, to improvise a lot. Rogen's casting would also mark the first time that Pumbaa was not played by Ernie Sabella, who had reprised the role for every Disney project the character was involved in up to that point.
Chiwetel Ejiofor as Scar, Mufasa's younger brother and rival who seizes the throne. Ejiofor described Scar as more "psychologically possessed" and "brutalized" than in the original film. Ejiofor said that "especially with Scar, whether it's a vocal quality that allows for a certain confidence or a certain aggression, to always know that at the end of it you're playing somebody who has the capacity to turn everything on its head in a split second with outrageous acts of violence—that can completely change the temperature of a scene". Ejiofor also said that "[Scar and Mufasa's] relationship is completely destroyed and brutalized by Scar's way of thinking. He's possessed with this disease of his own ego and his own want". Favreau said of casting Ejiofor, "[He] is just a fantastic actor, who brings us a bit of the mid-Atlantic cadence and a new take on the character. He brings that feeling of a Shakespearean villain to bear because of his background as an actor. It's wonderful when you have somebody as experienced and seasoned as Chiwetel; he just breathes such wonderful life into this character."
Alfre Woodard as Sarabi, Mufasa's mate, Simba's mother, and the leader of the lioness hunting party.
Billy Eichner as Timon, a wise-cracking meerkat who befriends and adopts a young Simba after he runs away from home. Eichner described Timon as "physically the smallest character, but he has one of the bigger personalities, and I love the combination of those two things. I kind of played into Timon, as I've done with many characters of mine, [the notion that] he might be small in stature but he has a huge sense of entitlement, which is always funny to play," and that "when Timon speaks and when he's quote-unquote 'being funny', he's very loud and boisterous, but [his] singing allows this vulnerable side, a slightly softer side, especially in 'Can You Feel the Love Tonight' and other moments." Eichner also talked about having "what some may consider a gay sensibility" that he brought to the table when he voiced Timon.
John Kani as Rafiki, a wise mandrill who serves as the shaman of the Pride Lands and a close friend of Mufasa's. Likening his role to that of a grandfather, Kani said, "Rafiki reminds all of us of that special wise relative. His wisdom, humor and his loyalty to the Mufasa dynasty is what warms our hearts towards him. [He's] always happy and wisecracking jokes as lessons of life and survival."
John Oliver as Zazu, a hornbill who serves as the majordomo to the King of the Pride Lands. Speaking of his role, Oliver said, "I think Zazu is basically a bird who likes structure. He just wants things to be as they should be. I think there are British echoes there because we tend to favor structure in lieu of having an emotional reaction to anything."
Beyoncé Knowles-Carter as Nala, Simba's best friend and later his mate and Queen of the Pride Lands. According to Favreau, the character has a bigger role than in the original film. Favreau felt that "part of [Beyoncé joining the film] is that she's got young kids, part of it is that it's a story that feels good for this phase of her life and her career, and she really likes the original very much. And then, of course, there are these wonderful musical numbers that she can be involved with, and my God... she really lives up to her reputation as far as the beauty of her voice and talent".
Shahadi Wright Joseph as Nala as a cub. Joseph reprises her role from the Broadway production. Joseph chose to work on the film because "Nala inspires little girls [...] She's a great role model".
James Earl Jones as Mufasa, Simba's father, King of the Pride Lands as the film begins. Jones reprises his role from the original 1994 animated film. According to Favreau, Jones' lines remain mostly the same from the original film. Ejiofor said that "the comfort of [Jones reprising his role] is going to be very rewarding in taking [the audience] on this journey again. It's a once-in-a-generation vocal quality". Favreau saw Jones' return as "carrying the legacy across" the original film and the remake, and felt that his voice's change in tonality compared to the original film "served the role well because he sounds like a king who's ruled for a long time".
Florence Kasumba, Keegan-Michael Key, and Eric André voice Shenzi, Kamari, and Azizi, the Matriarch of the spotted hyena clan and her two lieutenants who join forces with Scar in order to kill Mufasa. While Shenzi is a character that was featured in the original 1994 animated film, Kamari and Azizi are the respective names of new characters loosely based on Banzai and Ed from the original film. The hyenas' characterizations were heavily altered from the original film's, as Favreau felt that they "had to change a lot" to fit the remake's realistic style, stating that "[a] lot of the stuff around them [in the original film] was very stylised". Kasumba elaborated, declaring that "[t]hose hyenas were funny. These hyenas are dangerous." Kasumba also voices Shenzi in the German dub of the film.
Additionally, Penny Johnson Jerald voices Sarafina, Nala's mother. Amy Sedaris, Chance the Rapper, Josh McCrary, and Phil LaMarr voice a guineafowl, a bushbaby, an elephant shrew, and an impala, respectively, Timon and Pumbaa's neighbors in the oasis. J. Lee voices a hyena that chases after Timon and Pumbaa.
