Well, does anyone remember this?
Sorry for reporting this so late (apparently this news is from November), but Park Yong-woo has decided to drop out of the project. His movie Papa is hitting theaters in January so it appears scheduling conflicts may be one reason but nothing was really said about why. Unfortunately, this means that we won't be able to see Park Yong-woo and his adorable smile on the small screen early next year.
There was a report stating that Lee Sung-jae (Poseidon) was taking the role which would be nice because I like him, too, even though his choice of dramas is highly questionable. However, I don't think any castings besides Kim Hee-ae's is solid. A Wife's Credentials plans to air in February on jTBC.
Via Star News & TV Report