Mark Schwahn Writer
Mark Schwahn (born June 5, 1966) is an American screenwriter, director and producer. He is best known as creator, head writer and executive producer of the WB/CW drama series One Tree Hill.
Mark Schwahn (born June 5, 1966) is an American screenwriter, director and producer. He is best known as creator, head writer and executive producer of the WB/CW drama series One Tree Hill.
