EXCLUSIVE: CAA has signed Andrew Lincoln, who plays lawman-turned-zombie killer Rick Grimes in AMC’s The Walking Dead. This comes after the agency inked his Walking Dead co-star Norman Reedus, and shortly after the fourthseason premiere drew a record-breaking 16 million viewers. Lincoln, who prior to the series was best known for Love Actually, continues to be repped in the UK by Markham, Frogatt and Irwin, and attorney Geoffry Oblath.