Aladdin

Aladdin is one of the heroes and he is also the father of Aziz.

Aladdin
Aladdin used to be a street rat before he met the Genie when he found the lamp.

Descendants
He was mentioned in the actual film when Maleficent mentioned to Jafar that he wants revenge on him and the Genie.

Descendants 2
Aladdin, alongside with Jasmine make cameos in Descendants 2. During the news, it showed them having dinner with Mal and Ben.

Trivia

 * He is the first and so far only Disney Prince that is the main protagonist of his debut.
 * Possibly King Beast was also the main protagonist in Beauty and The Beast since his backstory is explained more than Belle's.
 * He was voiced by Scott Weinger in Aladdin.
 * He is the first Disney Prince to kiss his princess in the middle of his debut.
 * The actor and actress who provided she and Aladdin's singing voices, Brad Kane and Lea Salonga, respectively, both appeared in a music video entitled "We Could Be In Love".