In "Grey's Anatomy," AA plays a large role in the storylines of multiple characters. In season 6, Dr. Richard Webber (James Pickens Jr.) begins struggling with alcoholism and it is revealed that he has a history of alcohol addiction. AA and maintaining sobriety become an important part of Dr. Webber's life through out the rest of the series. Alcoholism, but more so drug addiction, is also heavily featured in the spin-off series "Private Practice." In season 4, it is revealed that both Dr. Charlotte King (KaDee Strickland) and Dr. Amelia Shepherd (Caterina Scorsone) have a history of problem drinking and narcotics addiction. This becomes main theme in season 5 when Amelia relapses and begins using again following her friend's suicide. The season follows her relapse and recovery. When Amelia joins Grey's in season 11, overcoming addiction remains an important part of her story line. Both series commonly discuss AA meetings, sponsors, and the "serenity prayer".