The new trailer for Thor: Ragnarok that Marvel Studios debuted this weekend at San Diego Comic-Con offered a glimpse at Karl Urban's Skurge, who's seen allied with Cate Blanchett's Hela. IGN spoke with Urban about his role and why Skurge betrays Chris Hemsworth's Thor to side with the Asgardian goddess of death.

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"When we find Skurge, he's operating the Bifrost because Heimdall is missing in action, and then pretty soon after that Hela shows up," Urban told IGN. "Skurge sees the writing on the wall and has to make a decision whether to die or join her, so his instincts of self-preservation take over."While Urban remained tight-lipped on whether or not Skurge is actually a secret ally of Thor's, he did tease that his ultimate allegiance "is the dilemma" for his character in the movie. The actor also spoke to the mix of magic and artillery in Thor: Ragnarok , calling the film "quite zany and eclectic and fun."For even more about his role as Skurge, including his experience wielding the character's iconic Bloodaxe, watch our full interview with Urban below:Thor: Ragnarok opens in theaters on November 3. For more on the God of Thunder's third standalone film, check out the new details and stunning poster Marvel revealed this weekend at San Diego Comic-Con. While you're at it, check out our interview with director Taika Waititi to find out how Thor: Ragnarok pays homage to Planet Hulk For all our Marvel coverage from this year's San Diego Comic-Con, head over to IGN's SDCC hub

Alex Osborn is a freelance writer for IGN. You can follow him on Twitter