American screenwriter and producer Mark Schwahn made his name mostly with his youth dramas. Schwahn, who started his career as a screenwriter in the late 1990s, demonstrated his interest in young adult stories with productions such as Youth Without Rules and The Perfect Score, which were among his early works. The peak of Schwahn's career is the One Tree Hill series, which he created in 2003. This long-running youth drama, which aired on The WB and then on the CW, masterfully dealt with the themes of sports, love and family, centering on the story of two stepsisters, Lucas and Nathan Scott, living in a small town. Schwahn shaped the series as both creative director and lead screenwriter; The production met with the audience for nine seasons, creating a strong fan base throughout its broadcast life. The character of Lucas Scott, who extends from the basketball court to the world of writing, stands out as one of the most original figures that Schwahn has added to the series. Following One Tree Hill, Schwahn appeared on E! in 2015. He created and produced the series The Royals for the channel. This drama series, about a fictional British royal family, showed Schwahn expanding his creative range with a different atmosphere and audience. Schwahn, who also contributed to the Coach Carter script, has left a distinct mark throughout his career, especially in the youth and drama genres.