Lauren Cohan stopped by The Ellen DeGeneres Show on Wednesday to promote her upcoming horror film, The Boy. Since the actress has spent plenty of time pretending to be scared in her new movie and in her role as Maggie [1] on The Walking Dead [2], Ellen decided to see what Lauren's nerves were really made of by pranking her with one seriously frightening surprise. After she finished telling Ellen all about The Boy's creepy plot filled with "psychological terror," a masked figure popped out next to her that's zombie-chewing-on-your-arm levels of terrifying. Watch the moment above, then check out a clip from the movie [3]!