Robert Knepper wrapped up a four-year run on Prison Break and is back on TV in the CW's new series Cult. The show is based around a character played by Matt Davis, who, in the process of looking for his missing brother, discovers a unique underworld of fans obsessed with a TV show. Robert visited us in LA recently to chat about the program's "far-out" premise of a show within a show. He plays a dual role on the show, which began last month. After debuting on a Tuesday, the show has moved to Fridays — the next episode airs this Friday at 9 p.m. on CW.