Jonas

Jonas is one of the Villain Kids to join Uma's Pirate Crew. He was first introduced in the book, Rise of the Isle of the Lost: A Descendants Novel when Uma was recruiting members to join her crew.

Personality
Jonas is described as ferocious.

Physical Appearance
Jonas wore his hair on cornrows and has a scar on his left cheek.

Rise of the Isle of the Lost
Jonas was one of the members of Uma's Pirate Crew. He, along with the rest of the crew, went to the Isle of the Doomed on a search for Ursula's Necklace.

Descendants
Jonas could be seen as one of the Villain Kids selling scarfs and other items at the market during the musical number of Rotten to the Core.

Descendants 2
Although his name is not mentioned, it is assumed that Jonas did appear in this film as a member of Uma's Pirate Crew. During the sword fight, he repeated the same scene with Evie when she pulled his scarf.

Descendants 3
He appears as a cameo and seems to have short hair again like in the first film and dancing with everyone when both worlds are united and that the barrier is broken and participate in Mal and Ben's engagement party.

Printed Materials

 * Rise of the Isle of the Lost: A Descendants Novel

Films

 * Descendants (presumably)
 * Descendants 2

Trivia

 * The dancer that portrayed Jonas, Navid Charkhi, has previously appeared in Descendants.
 * Coincidentally, both of his characters in the two movies shared a similar scene with Evie. In the first film, he could be spotted among the vendors during the musical number of Rotten to the Core. Evie came to him and flirtatiously pulled his scarf. In Descendants 2, during the sword fight, Evie did the same as she said: "Nice scarf. It's mine now".
 * This could indicate that they are the same character, or just an allusion to the first film.
 * His identity has been confirmed by Melissa de la Cruz, author of the Isle of the Lost book series.