Jason Momoa is totally metal in “See”.

Momoa’s character unleashes an epic war cry in the first episode of “See”. To achieve this, he enlisted Vancouver-based death metal vocalist Oli Peters to help him nail the guttural rally call.

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Momoa, 40, is a big fan of British Columbian death metal band Archspire. He reached out and asked Peters to help him perfect the war cry.

“Jason has such an interest in music and has done aggressive acting scenes before, so he was a quick learner for this,” Peters told IndieWire. “We spent time getting him familiar with what the vocal style is and were messaging back and forth while Archspire was on tour.”

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“When we hung out on sets, in between takes I’d come over to him and we’d go over the lines together,” Peters continued.

Peters and Archspire drummer Spencer Prewett actually made a cameo in the Apple TV+ series where they briefly appeared during Momoa’s war cry scene.