民郎 is the kanji form of the Japanese masculine name
民郎 (Tamio). The suffix
郎 (-rō, 'youth / man') is a classic ending for Japanese boys' names - also seen in
太郎 (Tarō),
次郎 (Jirō),
五郎 (Gorō). When a Chinese subtitle shows ◯
郎, you're almost certainly seeing a Japanese name.
