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Dean Cain voices him in the English version of the cartoon.
In Super Hero High, Jonathan and Martha Kent encourage Supergirl when she expresses uncertainty about leaving the Kent's farmhouse for Metropolis to begin attending Super Hero High School like her cousin Superman did. They convince her to go, and wave to her goodbye as she flies to the school. They later attend the assembly outside the school in celebration of their victory over the Female Furies and express pride as Supergirl is thanked for her role in the victory.
In the first part of Fortress of Solidarity, Supergirl feels lonely when Jonathan and Martha Kent are not able to make the SHHS winter holiday tree lighting ceremony in favor of going to CornCon, an agricultural event, especially seeing how other students have family members that made it to the ceremony. In the second part, Batgirl tells Supergirl that right after she left the school to relieve her homesickness in the arctic, Jonathan and Martha arrived, blowing off CornCon to be with her.
In Finals Crisis, Supergirl flies from the school back to the Kent's farmhouse where she tells Jonathan and Martha Kent that she is quitting school because of Semester Finals tomorrow, in which she must prove that her powers have improved since she first arrived at the school to pass. She tells them that tests have long been a weakness for her, and telling them of a time back on Krypton where she failed a science class final when bullies at her school unleashed her horse Comet, distracting her and causing the crystal she grew for her final presentation to grow out of control. They convince her to go back to school and try her hardest for Finals, and Jonathan remarks that he would give those bullies a piece of his mind if they were here right now. They wish her luck and wave her good-bye as she flies back to Metropolis. Later, Supergirl mentions that she was returning from the Kent's farm when she was shot with Kryptonite as she and her friends try to explain why they are late for Finals. Although they arrived late, Principal Waller passes Supergirl and her friends after they convince her that their powers have improved since they first arrived at the school.
Hits and Myths
In Hits and Myths, Supergirl narrowly prevents the Batplane from crashing into the Kents' farm after it is stolen by Black Canary and the Birds of Prey. Jonathan and Martha Kent meet up with Supergirl whent hey appear to investigate. While fleeing through the farm on foot, Black Canary disorients Jonathan and Martha with her Canary Cry, causing Supergirl checks to see if they are alright. Upon confirming that they are, Supergirl's resolve is strengthened and she and her friends eventually defeat and capture Black Canary and the Birds of Prey. The Kents later watch as Black Canary and the Birds of Prey are arrested and driven away, and Jonathan waves goodbye to Supergirl and her friends as they leave on the Batplane to go to a slumber party on Themiscyra.