Online snoopers have already figured out that the 28-year-old actress comes from a family of actors – in fact, her maternal grandmother is award-winning veteran actress Son Sook who starred in The Glory (2022). Here’s everything to know about Yerin Ha’s actress grandmother, Son Sook. She lived through the Korean warSon Sook (seated) was bitten by the acting bug after watching an Eugene O’Neill play. She’s an award-winning actressSon Sook has won the prestigious Baeksang Arts Award for best theatre actress thrice. She’s praised her granddaughterSon Sook has high praise for granddaughter Yerin Ha’s acting skills.