Quoc: Ron Hale (born January 2, 1946) is an American actor best known for his role as Dr. Roger Coleridge on the ABC soap opera Ryan's Hope for its entire run (1975 -- 1989). He played the recurring role of Mike Corbin, the father of mobster Sonny Corinthos in the ABC soap opera General Hospital.

Who plays sonny's father on general hospital?
HW Chung: OK, some thoughts:
The relevant sentence in the passage is: He played the recurring role of Mike Corbin, the father of mobster Sonny Corinthos in the ABC soap opera General Hospital. The answer is Ron Hale.