In the beginning of The Walking Dead, Sheriff Rick Grimes — played by Andrew Lincoln — wakes up in an abandoned hospital and finds the world engulfed by a zombie apocalypse.
The series had its debut on Halloween 2010 and AMC Networks awoke to a monster. The premiere drew 6.3 million total viewers and 4.3 million adults 18-49, making it, at the time, the biggest cable series launch ever.
