Sacha Baron Cohen as Dr. Billy Wayne Ruddick Jr. is demanding an apology from Sarah Palin who claimed she was duped into an interview for the comedian's new series, 'Who Is America?' Cohen as his new character took to Twitter on Thursday to fire back at Sarah Palin for her recent remarks on Facebook. The Hollywood Reporter says Palin posted to Facebook recently explaining that she unknowingly participated in a "sick" interview with Cohen for his new show.