In Cambodia, the localization of Korean dramas (K-dramas) through Khmer voice actors is not merely a linguistic translation; it is an act of cultural adaptation. The Single-Voice Phenomenon:
Even if you need to watch with English subs and mentally translate, Doctor Stranger offers: doctor stranger korean drama speak khmer
That sister was Srey Leak.
If you want to hear the Khmer lines yourself, here is where Cambodian fans can stream Doctor Stranger : In Cambodia, the localization of Korean dramas (K-dramas)