Scott Weinger as Aladdin, a poverty-stricken but well-meaning Agrabah thief. For his audition, Weinger sent in a homemade audition tape as Aladdin with his mother playing the Genie,and after several callbacks found out six months later that he had been cast as the title character. Aladdin's supervising animator was Glen Keane. Brad Kane provides Aladdin's singing voice.
Robin Williams as Genie, a comedic jinnī with high power that can only be exercised when his master wishes it. Clements and Musker had written the role of the Genie for Robin Williams, and, when met with resistance, created a reel of a Williams stand-up to animation of the Genie. The directors asked Eric Goldberg, Genie's supervising animator, to animate the character over one of Williams' old stand-up comedy routines to pitch the idea to the actor. The resulting test, where Williams' stand-up about schizophrenia was translated into Genie growing another head to argue with himself, made Williams "laugh his ass off" and convinced him to sign on for the role. Williams' appearance in Aladdin marks the beginning of a transition in animation to celebrity voice actors, rather than specifically trained voice actors in animated films. Genie's supervising animator was Eric Goldberg.
Linda Larkin as Jasmine, the princess of Agrabah, who is bored of life in the royal palace. Larkin was chosen for the role of Jasmine nine months after her audition, and had to adjust, or lower, her high-pitched voice to reach the voice the filmmakers were looking for in the character. Jasmine's supervising animator was Mark Henn. Lea Salonga provides Jasmine's singing voice.
Jonathan Freeman as Jafar, the power-hungry Grand vizier of Agrabah. Freeman was the first actor cast and spent one year and nine months recording his dialogue. He later readjusted his voice after Weinger and Larkin were cast as he felt "Jafar had to be seen as a real threat to Aladdin and Jasmine", as he was originally envisioned as an irritable character, but the directors decided that a calm villain would be scarier. Jafar's supervising animator was Andreas Deja, while Jafar's beggar and snake forms are animated by Kathy Zielinski.
Frank Welker as Abu, Aladdin's kleptomaniac pet monkey with a falsetto voice. Welker also voices Jasmine's tiger Rajah and the Cave of Wonders. Duncan Marjoribanks was the supervising animator for Abu, while Rajah was animated by Aaron Blaise.
Mena Massoud as Aladdin: An impoverished Agrabah thief and "street rat" who is smitten with the Sultan's daughter. Massoud said that Aladdin "sees a future for himself that’s greater than what’s been set out for him at the present moment. He doesn’t know exactly what it is or how he’s going to get there, but he knows it is out there", and felt the character "[i]s very selfless and usually does things for other people, but as he falls in love he loses himself a little bit and starts to become someone that he’s not. But he's a good person with good intentions and has good people surrounding him who lead him back to where he's supposed to be".
Naomi Scott as Jasmine: The Sultan's daughter and the feisty princess of Agrabah who wants to have a say in how she lives her life. Scott said that the character "will be strong and have fun, but also get it wrong and be emotional. She's a multidimensional woman, and she does not have to just be one thing. So in this movie, you see her go on such a roller coaster, as opposed to her one goal being to fall in love or get married". She further stated that Jasmine will try to find "the courage to speak out for her people", and said that "Jasmine wants to know what goes on in her kingdom and reconcile the distance that has been created, and Aladdin gives her the courage to do just that".
Will Smith as Genie: A comedically eccentric and kindly genie who has the nigh omnipotent power to grant three wishes to whoever possesses his magic lamp. Smith said that he was "terrified" while playing the character, but that "[he] found a lane that pays homage" to Robin Williams' performance in the original film, while still making the role "[his] own thing". Smith described the character as "both a trickster and a mentor" who tries "to guide Aladdin to the truth of the greatness that's already within him". Smith physically portrays the character when he is in the guise of a human, while his blue genie form is CGI, portrayed through motion-capture performance.
Marwan Kenzari as Jafar: A nefarious and deceptive sorcerer, the Grand Vizier of Agrabah and the Sultan's chief advisor who, frustrated with the Sultan's ways of ruling, devises a plot to overthrow the Sultan as the ruler of Agrabah by acquiring the Genie's lamp. Jafar's backstory will be explored in the film, which producer Jonathan Eirich felt will make the audience "understand why he's so bad, and [he thinks] that's what makes him such a good villain".
Navid Negahban as The Sultan: The wise and noble ruler of Agrabah who is eager to find a capable husband for his daughter Jasmine.
Nasim Pedrad as Dalia: Jasmine's loyal handmaiden and confidante. A new character that did not appear in the original film. Pedrad said that Dalia "[has] been by Jasmine’s side for years and really looks out for her". Smith said that the character was "a nice, delicate addition to the story that more humanized the Genie".
Billy Magnussen as Prince Anders: A suitor and potential husband for Jasmine from the kingdom of Skånland who is a new character that did not appear in the original film.
Rajah: Jasmine's protective pet Bengal tiger and best friend, who communicates through growling, roaring and grunting.
Cave of Wonders: A sand guardian that resembles a form of a giant head of a tiger who has been tasked to protect the magic lamp from intruders and give it to those who are worthy like a "diamond in the rough."
Nasim Pedrad ( Persian : نسیم پدراد ; born November 18, 1981) is an American actress and comedian best known for her five seasons as a cast member on Saturday Night Live from 2009 to 2014. She has since gone on to co-star in sitcoms such as Mulaney , Scream Queens , People of Earth , and New Girl .
William Gregory Magnussen (born April 20, 1985) is an American actor of stage, television, and film. He is best known for roles in Into the Woods (2014), Birth of the Dragon (2016), and Game Night (2018).
Navid Negahban ( Persian : نوید نگهبان ; born June 2, 1968) is an Iranian-American actor . He has appeared on 24 , Homeland , Mistresses and currently plays the supervillain Amahl Farouk / Shadow King on the second season of FX's Legion .