The Walking Dead season 6: Did you notice the Johnny Depp cameo (of sorts)?

He was looking a lot more 'emaciated' than usual

Fans of The Walking Dead who don't tend to feel squeamish at the show's more gruesome moments may have spotted a familiar face in the zombie drama's latest episode.

In Not Tomorrow Yet, the sixth season's particularly brutal 12th episode, Johnny Depp made a cameo-of-sorts - as a decapitated head.

Only this wasn't the real Depp fortunately, but the work of special make-up effects guru - and the episode's director - Greg Nicotero.

(AMC)

Speaking to Entertainment Weekly, Nicotero - who also executive produces the show - explained how the scene where Rick must choose a severed head that can double for Hilltop Colony leader Gregory (Xander Berkeley) was tough because Berkeley had no time to do a head cast. Naturally, he stepped up to the plate.

"The Gregory head is actually a cast of my head," he revealed.

"One of the other heads, I don’t know if I’m going to get in trouble if I say this, was Johnny Depp. I think we had sculpted an emaciated version of a dummy head for something and we used Johnny Depp’s head as a basis just for a clay sculpt."

He added, somewhat ominously: "Norman [Reedus, who plays Daryl] kept saying he wanted the heads when we were done shooting."

The Walking Dead airs Mondays at 9 PM on FOX.