When Winston Duke was a kid—9, or 10, he’s not quite sure—an episode of Frasier changed his life forever. It was Season 8, episode 12, “The Show Must Go Off”—more specifically, the scene where esteemed British actor Derek Jacobi parodies himself by doing a schmaltzy rendition of Hamlet, yowling, “I die, Horatio!”

“I ran around the house performing the bad Hamlet for a long time,” Duke says, chuckling. “I don’t know what it is about that episode, but it stuck with me.”

Two decades and two acting degrees later, the 31-year-old is, at long last, set to make his feature film debut in Marvel’s latest and greatest crown jewel, Black Panther. He’ll be introduced to millions of moviegoers and obsessive comic book fans as M’Baku, the leader of the distant Jabari mountain tribe and a villainous foil to Wakandan king T’Challa—and they’ll watch as Duke nearly steals the movie out from underneath Black Panther himself.

Duke is indelible in a role that’s been thankfully reimagined for the screen. In the Black Panther comics, M’Baku is a classically jealous rival, itching to take the crown from his archnemesis. In the film, directed by Ryan Coogler, M’Baku is still angsty and ambitious, but his actions are grounded in a loyalty to his people above all else. When he first read the film’s script, Duke noticed straightaway that M’Baku often says “we” instead of “I”—the symbol of a true leader.

“He’s deeply attached to his community and the welfare of his people,” the actor says. “This is a lot more than I could have ever expected, especially for my first role.”

As M’Baku, Duke is an instantly fearsome presence, towering over T’Challa with his six-foot-five frame. But underneath that roiling fury is the sensitivity of a schoolboy who loves Frasier and a clever sense of humor (deployed with some of the film’s best one-liners), which turns him from a cardboard villain into a sensational fan favorite. And it doesn’t hurt that M’Baku is also broadly handsome, with a formidable shape-up, a spruce beard, and a marquee polish—in other words, a royal Wakandan thirst trap.

The Jabari tribe is known for worshipping the gorilla god Hanuman; in the original comics, M’Baku was actually introduced as “Man-Ape,” a name abandoned by the film adaptation for obvious reasons. But by contextualizing the Jabari religion, Duke found an elegant way to sidestep negative or racist perceptions: “They haven’t been affected by colonialism and all the narratives that are associated with developing a sense of inferiority and people comparing them to animals,” he says. “To them, this is just who they pray to, and they find their strength and agency in this religion. So being a bit gorilla-influenced was a sense of pride for them.”

He also came up with certain ape-inspired characteristics for the film, including a scene in which the Jabari men grunt at an outsider who speaks without permission—a threatening cue for that person to shut up. To find M’Baku’s voice, he researched and imitated Nigerian accents, further separating the character from the South African-inspired T’Challa. It’s just one of many ways the Jabari differ from the city-based Wakandans, who largely worship the panther god Bast.

“The panther is sleek, the panther is sneaky, the panther is covert—meanwhile, the gorilla will show up and bang on his chest and make noises to warn you about what is about to happen if you continue to cross the line,” Duke says. “We don’t hide, we don’t sneak. We come through the front door.”