SEOUL--Anupam Tripathi said his grandfather sometimes read his palm and told him he’d be rich one day. His joking response? “Where is my money!” The 33-year-old Tripathi was rightfully doubtful.

Anupam Tripathi, the India-born, Korea-based breakout star of Netflix's global series phenomenon Squid Game is only just coming to terms with the success of the show. Tripathi plays Ali Abdul ...