Kpop idols who turned into k-drama actors

I’m genuinely shocked by the amount of Kpop idols who are now actors. I literally be watching a kdrama, fall in love with a character only to find that they’re an older gen Kpop idol. I’m not saying it’s bad thing, I just shocked everytime cause I didn’t know they were Kpop idols since I got into Kpop during 3rd gen.