Question: What is the year of birth of the South Korean actor who starred in a 2009 South Korean mystery thriller based on the Japanese novel "Journey Under the Midnight Sun" and television series such as "Piano", "Green Rose" and "Will It Snow for Christmas"?
Sentence (from "Go Soo"): Go Soo (born October 4, 1978), also known as Ko Soo, is a South Korean actor.
Relevant evidence: Yes