Watchmen baddie and Javier Bardem lookalike Jeffrey Dean Morgan is joining the cast of AMC's The Walking Dead.

Morgan, who most people will recognise as The Comedian in Watchmen and from his short but memorable stint as Denny on Grey's Anatomy is currently a series regular on The Good Wife.

He will play the iconic role of villain Negan. Fans of Robert Kirkman's comic series will know that the dastardly Negan is the ultimate badass, making David Morrissey's Governor look like a fluffy kitten. Negan is the violent leader of a group known as 'The Saviors' who use force and intimidation to subjugate other communities.

The character won't cross Rick Grimes and co's path until the season six finale which Morgan will guest star in before being promoted to series regular for season seven.