Amber Rose Tamblyn (born May 14, 1983) is an American actress and author. She first came to national attention at the age of 11 for her role as Emily Quartermaine on the soap opera General Hospital. From 2003 to 2005 she starred in the prime-time series Joan of Arcadia, portraying the title character, Joan Girardi, for which she received Primetime Emmy and Golden Globe nominations. Her feature film work includes roles such as Tibby Rollins from the first two The Sisterhood of the Traveling Pants films and Megan McBride in 127 Hours (2010), as well as appearing opposite Tilda Swinton in Stephanie Daley, which debuted at The Sundance Film Festival and for which Tamblyn won Best Actress at The Locarno International Film Festival and was nominated for an Independent Spirit Award. In 2016, she made her directorial debut with the film Paint It Black starring Alia Shawkat, based on Janet Fitch's 2006 novel of the same name. In 2021, she starred opposite Diane Lane in FX's Y: The Last Man. Tamblyn is a published author and cultural critic at large. She has published seven books across genres, and writes for The New York Times and other publications on issues of gender inequality and women's suffrage.