Who Are The Main Characters In 'The Rich Man'S Endgame'?

Jin-ho and Seo-yeon dominate 'The Rich Man’s Endgame,' but the side characters steal scenes constantly. Take Do-hyun, Jin-ho’s half-brother—a disabled genius who uses his invisibility to manipulate events from the shadows. Or Mrs. Kang, the family’s longtime housekeeper with more secrets than the national archives. Even minor players like Tae-sik, the comic relief driver with a gambling addiction, get moments to shine. The ensemble feels alive because everyone’s got hidden layers—like an onion made of betrayal and designer suits.

If you're diving into 'The Rich Man's Endgame,' buckle up because the cast is wild! The protagonist, Jin-ho, is this ruthless conglomerate heir who’s got everything—money, power, looks—but zero scruples. He’s the kind of guy who’d sell his own grandmother if it meant securing a business deal. Then there’s Seo-yeon, the brilliant but underdog chaebol daughter who’s been quietly plotting her revenge since childhood. Their dynamic is electric, like two vipers circling each other. The supporting cast adds so much flavor: Min-jae, the loyal but morally conflicted right-hand man, and Hae-won, the investigative journalist with a personal vendetta. What I love is how none of them are purely good or evil—just beautifully messy humans playing a high-stakes game.

And let’s not forget the wildcards! Chairman Park, Jin-ho’s dad, is a master manipulator pulling strings from his deathbed, and Ji-hyun, the ex-lover with her own agenda, keeps everyone guessing. The way their backstories intertwine through flashbacks is chef’s kiss. Honestly, half the fun is trying to predict who’ll backstab whom next. The writer really nailed giving each character motivations that feel raw and relatable, even when they’re doing outright despicable things. You end up weirdly rooting for everyone while also hoping they crash and burn? It’s that kind of story.