A fourth season of 12 episodes has been confirmed and will premiere on June 23, 2014 on MTV. This will be the first season not to star Crystal Reed. New cast additions include Meagan Tandy as Braeden (who only appeared in 2 episodes of season 3), Dylan Sprayberry as "Liam", Khylin Rambo as Mason “an out-and-proud athlete” and Mason Dye as his best friend Garrett. Dylan O'Brien ...。1888年的柏林夏里特医院,孤儿伊达不仅找到了自己的感情寄托和事业道路,更是亲眼见证了日后被授予诺贝尔医学奖和科普利奖章的医学家们为攻克结核病和白喉而做出的努力尝试。。