G is for Gambit
The Ragin' Cajun X-Man has his own movie in development starring Channing Tatum, and the actor was even rumored to have a cameo in "Apocalypse." Tatum denied those rumors, and they've since fizzled out. Still, Gambit was one of Apocalypse's Horsemen in the comics, so it's not far-fetched to believe he could show up in the movie. Although right now it seems like Tatum and the "Gambit" crew are working toward getting the card-throwin' X-Man's solo movie off the ground.
H is for Havok
Lucas Till's Havok has been a player in all three installments of the X-Men's time-hopping trilogy, but he's had a notably smaller role than Xavier, Magneto, Mystique and Beast. After being introduced as one of Charles Xavier's original X-Men in "First Class," he was seen briefly as a soldier in Vietnam in "Days of Future Past." Judging by trailers for the film, Havok might have more of a presence in this film; after all, he's by Xavier's side when he gets the rundown on Apocalypse from Moira MacTaggert. This film also introduces Havok's brother Cyclops into the mix, marking the first time the Summers siblings have shared the screen.
I is for International Box Office
"X-Men: Apocalypse" is already a money maker -- and it hasn't opened in America yet. The film opened last weekend on 20,596 screens in 75 markets, ranging from the UK to Brazil, Russia, Mexico, India and many more. The film gave Fox its largest ever opening weekends in the Philippines, India, Indonesia, Singapore, Thailand and Colombia. The film's worldwide haul so far stands at $103.3 million, and it opens in the U.S., China and South Korea this week.
J is for Jubilee
Jubilee had three blink-and-you'll-miss-'em cameos in the original X-Men trilogy, where she was played by Katrina Florence and Kea Wong. Lana Condor steps into the yellow coat and pink sunglasses in "Apocalypse," playing a version of the character with electrical "fire-plasmoid" powers as opposed to pure fireworks powers. Condor also hosted a retro-style enrollment video for the Xavier's School in-character as Jubilee, and it's totally rad.
K is for Kinberg
"X-Men: Apocalypse" marks the fourth film that Simon Kinberg has been involved with. In addition to writing and producing "Apocalypse," he also wrote and produced "Days of Future Past," produced "First Class" and wrote "The Last Stand." Kinberg also, in a way, serves as Fox's version of Marvel Studios president Kevin Feige; Kinberg has been involved in many of Fox's Marvel properties, also serving as a producer on "Deadpool" and writer/producer on "Fantastic Four." He's also onboard for the upcoming third "Wolverine" film and "Gambit."
L is for Logan
Surprise -- Wolverine is in this film! Director Bryan Singer remained purposefully vague about Logan's involvement in the movie for a long time before the final full-length "Apocalypse" trailer confirmed that Wolverine will be in the film. But this time around, Hugh Jackman is playing a version of the character we haven't seen before. When we last saw the character in "Days of Future Past," the 1973 version of Logan was being fished out of a river by the government (well, Mystique posing as General Stryker fishes him out). "Apocalypse" will see Wolverine at his most feral, in the moments following his transformation into the metal-boned killing machine Weapon X.