Julian McMahon (Nip/Tuck) and Daisy Betts (Shutter) have been added to the cast of Syfy’s Childhood’s End, a six-hour miniseries based on Arthur C. Clarke’s classic to premiere in 2015. It follows the peaceful alien invasion of Earth by the mysterious ‘Overlords,’ whose arrival begins decades of apparent utopia under indirect alien rule, at the cost of human identity and culture. McMahon will play Rupert Boyce, an enigmatic entrepreneur. Betts is set as the female lead, Ellie, an arts graduate engaged to marry Ricky Stormgren (Mike Vogel), the most influential human in the world. They join previously cast Vogel, Charles Dance, Ashley Zukerman, Osy Ikhile and Yael Stone. Universal Cable Prods is the studio.