LOS ANGELES — Rick Moranis is coming back, and now the world finally knows why.

The 73-year-old actor, who walked away from Hollywood at the height of his fame in the early 1990s and stayed away for nearly three decades, confirmed this week that he will return to the big screen in Amazon MGM Studios’ long-rumored “Spaceballs” sequel, titled “Spaceballs: The New One.” The announcement landed April 15 at CinemaCon in Las Vegas, arriving just days before Moranis turns 73, and it immediately became the most talked-about piece of casting news of the year.

But the headline is not simply that Moranis is acting again. It is that he is returning on his own terms, at the only moment he was ever going to say yes.

For years, Moranis has been famously selective, turning down nearly everything that came his way. Those close to him say only a project he genuinely felt excited about could justify time away from home. That standard quietly eliminated dozens of scripts and offers across three decades.

“Spaceballs” was never going to be just another offer.

The sequel reunites the original cast in what is being described as a genuine gathering rather than a soft reboot. Bill Pullman returns as Lone Starr. Daphne Zuniga returns as Princess Vespa.

George Wyner returns as Colonel Sandurz. And at the center of it all, 99-year-old Mel Brooks returns as Yogurt, producing the film alongside a newer ensemble that includes Josh Gad, Keke Palmer, Anthony Carrigan and Lewis Pullman.

For Moranis, the decision traces back to a single relationship. Brooks is the director who spotted something special in him in 1987 and handed him one of the most beloved comic villains of the decade: Lord Dark Helmet, an oversized helmet balanced on Moranis’s slight frame, a theatrical villain played for maximum self-aware absurdity. The joke worked precisely because Dark Helmet felt so at odds with who Moranis actually was as a performer — sincere and warm rather than menacing.

He knew it, and he leaned into it fully.

Now, at 99, Brooks is still working, still inventing new material, and personally asking one more time for Dark Helmet to show up for one last ride. For an actor whose entire career ran on sincerity, on refusing to let an audience see the seams in a performance, there was apparently only ever going to be one kind of role worth breaking a 30-year silence for.

The timing lines up with almost suspicious precision once you trace it back. Moranis’s children — the entire reason he stepped away from film sets in the first place — are fully grown adults now, out in the world, building their own lives and careers. They no longer require the steady, present, at-home parent he insisted on being through every year of their childhood and adolescence, a responsibility he never once treated as optional.

Frederick Allen Moranis was born April 18, 1953, in Toronto into a middle-class Jewish family. He did not start out chasing acting at all. He began as a radio disc jockey in the mid-1970s, working under the on-air name Rick Allen at a string of Toronto stations, building a reputation for sharp, uncanny celebrity impressions of figures like Woody Allen and Merv Griffin.

It was a friend from those years, Dave Thomas, who pulled him toward television, inviting him to join the third season of “Second City Television,” the sketch show known simply as SCTV. Almost nobody remembers the detail about that leap: Moranis was the only regular performer on SCTV who never came up through the actual Second City stage troupe. Everyone else — John Candy, Eugene Levy, Catherine O’Hara — had trained together on stage for years, building a shared rhythm long before the cameras arrived.

Moranis walked in sideways from radio, an outsider from day one with no stage pedigree to lean on.

He later put it plainly: “I’m really not an actor. I’m a guy who comes out of comedy, and my impetus was always to rewrite the line to make it funnier, not to try to make somebody’s precious words work.” That instinct — rewriting rather than reciting — would define nearly everything he did for the following two decades.

The character that made his name was a pure accident of assignment. Thomas and Moranis were told to create a sketch with identifiable Canadian content. Out of that throwaway task came Bob and Doug McKenzie, two beer-loving, toque-wearing brothers who became so popular they got their own segment in nearly every episode, then their own hit comedy albums, and finally their own film.

“Strange Brew,” released in 1983, saw Moranis co-write, co-direct and co-star alongside Thomas, pulling in roughly twice its budget at the box office and becoming a genuine Canadian cult classic.

Then came 1984, and “Ghostbusters.” The film assembled a cast stacked with heavyweight names: Bill Murray, already the coolest man in movies; Dan Aykroyd, one of the most recognizable comic actors alive; Sigourney Weaver, fresh off “Alien” and a Broadway run. And then, in a much smaller role, Rick Moranis — a Canadian sketch comic best known for beer jokes and toques.

He played Lewis Tully, the neighbor and accountant locked out of his own party. On paper, Lewis is pure comic relief: awkward, oblivious, talking too much, reading the room badly, the butt of every joke he is in. What Moranis actually did with the part was far more delicate.

He never once winked at the camera. Lewis genuinely believes he is charming. He genuinely thinks people like him.

Because Moranis played that sincerity completely straight rather than mugging for laughs, the audience believed it too — and loved him for it despite every reason not to.

John Candy was originally considered for the role, but creative differences over how the character should play sent it to Moranis instead, whose instinct was always to play it sincere rather than broad and cartoonish. That single casting swap reshaped both of their careers. “Ghostbusters” went on to gross over $242 million domestically and nearly $300 million worldwide, making it to this day Moranis’s highest-grossing domestic release.

Two years later came “Little Shop of Horrors,” and the story behind his casting is stranger than most people realize. Director Frank Oz had been working in London for nearly nine years and had genuinely never heard of Rick Moranis when casting began, completely out of the loop on American comedy at the time. It was producer David Geffen who pushed Moranis’s name forward, and Oz only agreed after actually watching his work — a decision that led to a close friendship between the two men that lasted for years.

As Seymour Krelborn, the meek florist’s assistant who accidentally raises a carnivorous talking plant, Moranis found a register he would revisit again and again: a hopeful, lovesick, slightly overwhelmed man who sings because he cannot say what he actually feels any other way. Roger Ebert called it exactly the kind of film cults get built around, and he was right.

A year later, in 1987’s “Spaceballs,” Mel Brooks handed him something completely different. By 1989, Moranis had built an entire second act out of playing loving, slightly overwhelmed fathers. In Ron Howard’s “Parenthood,” his character Nathan starts out rigid and uncomfortable to be around — an overly academic, controlling father nobody warms to right away.

Then he walks into his wife’s classroom mid-lecture and serenades her with a Karen Carpenter song in front of the whole room, a scene that reframes the entire character in about 90 seconds.

Then came “Honey, I Shrunk the Kids,” a massive Disney production and one of the biggest family films of the year, earning nearly $223 million worldwide off an $18 million budget. The kind of number that turns a working actor into a genuine household name overnight. Years later, Moranis remembered how physical the role was, describing the homemade shrink ray helmet his character builds out of spare parts as essentially a hockey helmet with an exposure box, some lights and some magnifying glasses.

He recalled getting suspended on wires above the yard for the film’s climax and insisted it was not difficult at all, joking that he was essentially lying in a hammock on his stomach the whole time while everyone else did the hard work below him.

Then, in February 1991, everything changed. His wife, Anne Belsky, a costume and makeup designer he had married in 1986, died of breast cancer, leaving him a single father to two young children, Rachel and Mitchell. He had already been cast in “City Slickers” that same year and withdrew from the film as her health declined, choosing to be with his family instead of on location — a decision that quietly signaled where his priorities had already shifted long before he made any public announcement.

He did not vanish from screens overnight. He still appeared in “Ghostbusters II,” “My Blue Heaven” and “Honey, We Shrunk Ourselves” through the rest of the decade. But the steady, reliable screen presence audiences had come to count on every year quietly began disappearing.

Unlike so many actors who fade out through bad choices or scandal or simply running out of road, Moranis walked away while he was still very much at the top.

“I became a single parent,” he said years later, “and I just found that it was too difficult to manage the traveling involved.” Film work meant months away from home at a time, long shoots on location, and that math simply stopped working for a man determined to raise two kids alone. He described what he found instead in strikingly simple terms: “When my kids came home, there was music, there were lights on, and there were great smells coming out of the kitchen, and it was just a joyful place to be, and that’s what I wanted.”

What began as a temporary break, in his own words, just kept extending — month after month, year after year — until he realized he genuinely did not miss the career he had left behind. He did not disappear entirely. In 2003, he started writing and recording country songs, sharp, funny, self-aware material that had nothing to do with trading on nostalgia.

He released “The Agoraphobic Cowboy” in 2005, an album title that announces its own sense of humor, and it earned him a Grammy nomination for best comedy album, followed years later by “My Mother’s Brisket” in 2013.

In 2020, Disney nearly brought him back to live action entirely, casting him to reprise his role as bumbling inventor Wayne Szalinski in a new “Honey, I Shrunk the Kids” sequel titled “Shrunk,” with Josh Gad attached. Production was set to begin that year. Then the world shut down, and the project quietly stalled out indefinitely.

That same October, Moranis was the victim of an unprovoked assault on a New York City sidewalk, punched from behind and knocked to the ground by a complete stranger while simply walking to run an errand. He sustained injuries to his head, back and hip. Security footage spread online within hours, drawing outrage from people who had grown up watching him and had not realized until that moment how quietly he had been living an ordinary New York life all along.

The real return finally arrived this month. Moranis, turning 73 that very week, confirmed he is stepping back into Dark Helmet’s oversized armor for his first live-action film role in nearly 30 years — a fact that made headlines across entertainment outlets almost instantly, given how long he had stayed away and the film’s own puckish title, a nod to the very same brand of self-aware absurdity “Spaceballs” had always traded on.

It is a homecoming built on the same quiet integrity that made him walk away in the first place. And that, more than any single film or franchise, may be the truest thing anyone has ever said about Rick Moranis.