Ishmal is a supporting character in the movie Doraemon: Nobita's Legend of the Sun King. He is Kuku's father and Theo's stick art teacher. He taught Gian the art of stick fighting and was very fond of him.
Story
Ishmal first met Nobita when the latter was strolling around the palace disguised as Theo. Ishmal mistook him to be the real Theo, and persuaded Nobita to fight a match with him. Nobita lost, and Kuku, Ishmal's daughter, was assigned to take care of him. Nobita and Kuku soon befriended each other. Ishmal and Kuku became suspicious of Theo's behaviour, when he returned to Mayana that night, but ignored it.
Kuku was then captured by Ledina's servants, while Ledina ordered Theo to come to the Temple of Darkness to retrieve Kuku, alone. He would then be sacrificed. Theo courageously began his journey to the temple. When Nobita and the group comes to Theo's room disguised, Ishmal enters, very tired and frightened, and asks where Theo had been. To prevent making the matter worse, Nobita had to reveal the truth, and Ishmal, although shocked, agrees to go to the Temple of Darkness to rescue Theo.
They continued the journey together and even found Theo, but they end up in a vertical chasm, with use of Bamboo Copter being the only way out. But their Bamboo Copters were malfunctioning due to a lighting strike they faced earlier during the journey. Gian volunteered to climb up the chasm and grabs the wall's rocks, only to pull out a huge group of white snakes which appear all around the chasm's walls. It was a trap set by Ledina. Doraemon is forced to lend everyone a Bamboo Copter. They were one short, so Suneo and Gian together lifted up Ishmal.
He picked his spear into the rocks above on reaching the surface, but his spear slips off and he falls into the chasm. Gian blames himself for invoking the trap, but the group had to continue. While fighting Ledina's troops in a waterfall nearby, Theo is captured by Ledina's servants but he manages to free himself. The group advances to save Theo again, while Ishmal is spotted lying at the pool of a waterfall nearby. Upon reaching the Temple of Darkness, Ishmal warns everyone to get out of the site as Ledina was defeated and the temple would then be destroyed. He is later present at Theo's coronation ceremony.