AMC has greenlit The Walking Dead as a six-episode series based on the comic book written by Robert Kirkman and published by Image Comics. The Walking Dead tells the story of life following a zombie apocalypse. It follows a group of survivors, led by police officer Rick Grimes, traveling in search of a safe and secure home. Andrew Lincoln (Love Actually, Teachers, Strike Back) will portray the lead role of Rick Grimes while actor Jon Bernthal (The Pacific, The Ghost Writer) will portray the character Shane, who worked with Rick in the police department before the zombie disaster. Other cast includes Laurie Holden (The Shield), who plays Andrea, one of two sisters who join the survivors of the zombie plague, Steven Yeun as Glenn, an expert scavenger and Sarah Wayne Callies (Prison Break), who plays Rick's wife Lori.