On United States of Tara, Toni Collette plays a woman with dissociative identity disorder. One of her alters is Buck, a macho truck-driving Vietnam vet. Collette says she was nervous about creating Buck. "I didn't want him to be a cliche and I didn't want him to become laughable for the audience to be taken with the idea of a woman playing a guy." Showtime hide caption

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The sitcom South Park debuted on Aug. 13, 1997. It is Comedy Central's highest-rated and longest-running show. South Park has received a Peabody Award as well as four Emmy Awards. Courtesy of Comedy Central hide caption

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In this image provided by the United Nations Stabilization Mission in Haiti, U.N. Secretary-General Ban Ki-moon greets Sean Penn as he visits a tent camp at the Petionville Club golf course in Port-au-Prince, Haiti, on March 14. Sophia Paris/MINUSTAH via Getty Images hide caption

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On the streets of Kingston, Jamaica, women buy bleaching products sold in plastic bags without labels. Davia Nelson for NPR hide caption

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In 2003, graffiti artist Tony Quan was diagnosed with Lou Gehrig's disease, leaving virtually every muscle in his body paralyzed except for his eyes. EyeWriter.org hide caption

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Bryan Cranston stars as Walter White, a high-school teacher turned meth dealer, in the AMC drama Breaking Bad. Ben Luener/AMC hide caption

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