In "Gu Family Book," Choi Jin Hyuk, who is now 28, played the father of actor Lee Seung Gi, who was 27. But there was magic involved in that plot, so maybe that's not so strange.

But then Choi Jin Hyuk, who now stars in "Emergency Couple," is often told that he looks old for his age.

On a recent episode of "One Night of TV Entertainment," he spoke about the sometimes disconcerting fact.

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