North Korea's latest defector, a young soldier known only by his family name Oh, is a quiet, pleasant man who has nightmares about being returned to the North, his surgeon said on Thursday.

"He's a pretty nice guy," said lead surgeon John Cook-Jong Lee, who has been operating and caring for the 24-year-old. Oh has become a focus of worldwide attention after he was badly wounded by fellow North Korean soldiers as he scrambled across the border in the Demilitarized Zone that separates North and South on Nov. 13.

Video of Oh's escape released on Wednesday showed him stumbling over the border and being dragged unconscious through the undergrowth by South Korean troops.