Everything You Need to Know About That 'Deadpool' End-Credits Scene

Seriously. This post is the definition of spoiler. Read at your own risk.

After years in the making, Ryan Reynolds’s Deadpool is finally in theaters. And the potty-mouthed mutant barely waited for the credits to finish rolling before sharing news about a sequel.

After we learn the names of every gaffer, grip, and caterer who worked on the movie — all to the strains of Deadpool’s signature song, Shoop (by Salt-N-Pepa) — we are treated to the requisite Marvel post-credits sequence. And the Merc With a Mouth doesn’t disappoint.

Reynolds reappears in a familiar-looking wallpapered hallway and makes like the bathrobed Matthew Broderick at the end of John Hughes’s 1986 fourth-wall-breaking comedy Ferris Bueller’s Day Off.

“You’re still here,” observes Deadpool. “It’s over. Go home!” Then he acknowledges the audience is awaiting a teaser for Deadpool 2. “We don’t have that kind of money.

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"Do you expect Sam Jackson [a.k.a. Avenger boss Nick Fury] to show up with an eye patch…? Go, go!” Shoop starts playing again, and just when you think it’s really over, Deadpool drops a bombshell in a sequence that wasn’t part of early media screenings. There will be a new Marvel character who’ll be joining him in the next movie: his time-travelling comic-book cohort Cable. The two go back to Deadpool’s very first appearance in a 1991 issue of New Mutants and famously buddied up for their own comic series from 2004 to 2008, so there’s plenty of material for the writers to draw from.

Deadpool also reveals that Cable, the telekinetic son of X-Men’s Cyclops, hasn’t been cast yet. (Both characters are pictured above.) “Just need a big guy with a flat-top,” he says in the scene, throwing out such potential stars as Mel Gibson, Dolph Lundgren, and one unlikely person: Keira Knightley. “She’s got range, who knows?” he jokes, adding, “Shh. It’s a big secret.” Big being the operative word: Cable is 6-foot-8 and 350 pounds. Either they’ll have to cast a real large human — maybe an NFL linebacker — or supersize an actor through green-screen magic.

After Deadpool warns audiences not to leave their theater trash lying around because it’s “a total dick move,” he recalls the famous soundtrack from Ferris Bueller’s with a breathy “chicka chicka.”

Deadpool writers Rhett Reese and Paul Wernick (Zombieland) have said they’ve been kicking around some ideas for the sequel, but no specifics have been announced beyond Cable’s inclusion, nor is there any word on whether director Tim Miller will return.

(Photos: 20th Century Fox, Marvel)