Marvel star Michael Peña has opened up about his "nerve-racking" role in Jack Ryan season 4.

Peña is joining the Prime Video series as Domingo 'Ding' Chavez — a CIA agent who recurs in both the Jack Ryan novels and Tom Clancy's Rainbow Six universe

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[{"selector":"#anim-94893da1-a70c-409e-a768-7723eb443628 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(34.179687404002955%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] While Peña has some experience playing franchise characters — he played Scott Lang's pal Luis in the Ant-Man movies and DEA agent Kiki Camarena in Netflix's Narcos: Mexico — he admitted to Digital Spy that he had trepidations about playing Ding

"I mean, you watch the show, and it's a great show. And John is fantastic in it," he said. "And I've binged it in two days, the first season, and I thoroughly enjoyed it

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So to be honest with you, you just kind of don't want to mess it up."

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[{"selector":"#anim-d6447a8a-be3a-4b9f-9af9-80c2b1f84db4 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-51.6779119600983%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"fill":"forwards"}] The actor went on: "You don't want to mess up something that's like a successful train. So you study up as best as you can, and then you have to let it go. But sometimes that letting go can be a little bit difficult.