Karl Urban has given an explanation for why his character Skurge is a villain in Thor: Ragnarok.

We don't know too much about Skurge the Executioner's role in the MCU, but the Comic-Con trailer did reveal that he was on Hela's (Cate Blanchett) side – not too surprising since he is mainly a villain in the comics.

However, he's actually best known for fighting Hela to allow his fellow Asgardians to escape her underworld, potentially hinting at his journey in Thor: Ragnarok.

But Skurge is definitely working for Hela at the start of the threequel and Urban has told the Los Angeles Times just why Skurge is working with her, while he fills in for Heimdall (Idris Elba) in operating the Bifröst bridge.

"Hela turns up, and Skurge quickly realises that he either has to join her or die. He's not the sharpest tool in the shed, but he's bright enough to make the right choice for him. He's a survivalist," Urban explained.

What's the betting Skurge changes his mind and fights for Thor when he returns to Asgard?

Disney

We've already had our go at predicting everything that will happen in Thor: Ragnarok based on the trailers to date and, in the UK, we'll be seeing if we're right even earlier as the release date moved forward.

Thor: Ragnarok will now hit UK cinemas on Tuesday, October 24, with a US release to follow on November 3.

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