LOS ANGELES — Three years ago, Arden Cho was ready to walk away from acting. She’d landed her first lead role in the Netflix series “Partner Track,” only to see it canceled after one season. She was heartbroken. AP Breakthrough Entertainer: Arden Cho seizes her golden moment after Hollywood heartbreak Her agent wouldn’t let her go. “She refused to say ‘You’re done.’ She just kept sending me things,” Cho said. “She just keep being like, ‘Look, I know you’re not auditioning. I know you’re done, but I think you’d like this.’” Now, Cho is juggling multiple projects after voicing the lead character Rumi in Netflix’s animated summertime sensation “KPop Demon Hunters,” which has become the all-time most-streamed movie on the platform — and spawned inescapable earworms “Golden” and “Soda Pop” as its soundtrack dominated pop charts. “I am so ready,” Cho said. “It feels like it is my golden moment.” Now, Cho is among The Associated Press’ Breakthrough Entertainers of 2025. The timing feels almost cosmic. Netflix announced that “KPop Demon Hunters” was its most-watched …