X-Force is a fictional team of anti-heroes, formed by Rob Liefeld and published by Marvel Comics. They are most commonly associated with the X-Men. X-Force's first leader was a mutant Cable - X-Force takes more of a militant, black-ops and aggressive approach towards its enemies compared to the X-Men or maybe the Brotherhood.
20th Century Fox are in development for a film version of X-Force. On July 11, 2013, it was reported that Jeff Wadlow has been hired to write and direct the adaptation. Lauren Shuler Donner will produce. On December 3, 2013, Rob Liefeld confirmed that Cable and Deadpool would be appearing in the film. The film will be released sometime in the year 2017.
If 20th Century Fox are even thinking of doing the film, this is who I consider as the line-up of the X-Force film. Those members do have the potential of shining up to the big silver screen and give us the militant and tactical side of the Fox's X-Men universe - despite X-Men Origins: Wolverine Stryker's team. Just some suggestions from who I think should appear in the film. Feel free to suggest a character and an actor/actress to play them. No arguments needed.
Cable a.k.a Nathan Summers
It has been confirmed by Liefeld that he will appear in the soon-to-come X-Force film. Nathan Summers first appeared in Uncanny X-Men #201 (Jan. 1986) while Cable's identity was created by writer Louise Simonson and artist/co-writer Rob Liefeld and first appeared in The New Mutants #87 (March 1990). The son of Cyclops (Scott Summers) and Madelyne Pryor (Jean Grey's clone), and the "half" brother of Rachel Summers, he was born in the present Marvel timeline but was sent into a distant future. His abilities are telepathy, telekinesis, technopathy and he is an expert marksman. A natural born leader like Cyclops and he has great potential of shining on the big silver screen for not just us fans but for those who don't know him.
Deadpool a.k.a Wade Wilson
It is also confirmed by Liefeld that he will star in the soon-to-be X-Force film. The character first appeared in The New Mutants #98 (February 1991). Deadpool was depicted as a supervillain when he made his first appearance in The New Mutants and later in issues of X-Force, but has since evolved into the role of an antihero. Deadpool is a disfigured and mentally unstable mercenary with the superhuman ability of an accelerated healing factor. He is known as the "Merc with a Mouth" because of his talkative nature and tendency to break the fourth wall, which is used by writers to create humorous effect. The reason he has the potential of lighting up the screen again after his movie will come out in February in 2016, is that he provides the comedic aspect in the film, it would be great to see the adventures of unlikely bromance 'Cable and Deadpool' like in the comics, he is a fan favourite to Marvel fans and he is an original/recognisable member of the X-Force. Actor Ryan Reynolds has already expressed interest of doing the film.
Psylocke a.k.a Elizabeth 'Betsy' Braddock
Betsy was initially a supporting character in the adventures of her twin brother, Captain Britain, even briefly substituting for him in the role, before becoming the mutant superheroine and X-Men member Psylocke in 1986. Originally presented as a precognitive in the pages of Captain Britain and then as a telepath, the character eventually had her mind placed in the body of a Japanese female ninja known as Kwannon, gaining many of Kwannon's martial arts skills and elements of her personality. Later, Psylocke acquired the power of telekinesis. I believe this character has the potential to star on the big screen again if actress Olivia Munn expresses her interest to star as her again. Munn has received sword training and martial arts to understand Psylocke which is what an actor should do, depending on the profile. One of the greatest female X-Men characters and an original member of the X-Force that deserves to appear on screen again after film X-Men Apocolypse .
Angel/Archangel a.k.a Warren Kenneth Worthington III
Angel is a member of a subspecies of humans known as mutants, who are born with superhuman abilities. He originally possesses a pair of large feathered wings extending from his back, enabling him to fly. He is the heir to a multibillion-dollar corporation called Worthington Industries. This privileged background results in Warren being stereotyped as a self-absorbed playboy during his early years with the X-Men. This personality was ultimately replaced with a more introspective and brooding personality in the late 1980s, when the character was revamped into the more grim and gritty "Archangel" persona. This character is an original member and has great potential to star in the X-Force film. I would be more than happy to see actor Ben Foster from the 'X-Men: the Last Stand' film to reprise his role as the older Angel to develop the character more.
Fantomex a.k.a Charlie Cluster-7/ Jean-Phillipe/ Weapon XIII
Fantomex resembles the titular character of the Italian comic book Diabolik, whose film adaptation was released as Danger: Diabolik, Diabolik's lover being named Eva. The character of Diabolik is loosely based on the character Fantômas, the subject of a series of early-20th century French detective thrillers and a popular Mexican comic book adaptation, whose name is more directly reflected in Fantomex's own name.Fantomex's name, Jean-Phillipe, is a reference to actor John Phillip Law, star of "Danger: Diabolik". In addition, his Weapon X designation -- "Weapon XIII"—is a reference to the secret agent protagonist of the Franco-Belgian comic XIII. This character has the potential to rise up to the screen and the X-Force film can make this character more well known. It would be great to hear more French from the team other than Gambit who speaks a bit of it. He just likes the French accent. Oui, Oui he deserves to be recognised on the big screen.
Domino a.k.a Neena Thurman
Created by writer Fabian Nicieza and artist/co-writer Rob Liefeld, she first fully appeared in X-Force, vol. 1 #11 (June 1992). In addition to her exceptional marksmanship and hand-to-hand skills, Domino possesses mutant probability-altering powers, similar to those of the X-Man Longshot. She often uses her skills as a mercenary, but has also been the partner, confidante, and lover of the superhero Cable, a lieutenant in his militant group X-Force, and a member of the X-Men. She, Cable and Deadpool collaborated for quite a while in the comics and this film is perfect for her to appear on the big screen. Another female of the team that can kick ass like Psylocke.
Warpath a.k.a James Proudstar/Thunderbird II - Originally blaming the X-Men for the death of his brother, Thunderbird, he joined the villainous Hellions group to get revenge. He later reconsidered his views and became a longtime member of the militant X-Men offshoot X-Force. After a long journey to the Shi'ar Empire with the Uncanny X-Men, Warpath became a member of the new incarnation of X-Force, but he left after the events of Necrosha. An Apache Native American, Proudstar possesses mutant superhuman strength and speed. His powers resemble those of his older brother, the short-lived X-Men member Thunderbird, although Warpath's power-levels are much higher. Warpath is one of the few mutants to retain his powers after the Decimation. Actor Booboo Stewart played him as a small role in film X-Men Days of Future Past and this film would be a great opportunity for him to reprise the role.
The reason I left Wolverine out because Hugh Jackman is finally putting up the claws in 2017 and it will be sad for him to leave the role. Recently, people complain about him being on the screen a lot and not giving other characters a chance to shine. We all grateful and happy that you brought Wolverine to life and we will miss you. Thank you Hugh Jackman.
These are the characters that I suggested of who should appear in the film. It would be exciting if any of these characters are confirmed to appear. We'll be looking forward of how this film will turn out. They can choose any villain they want to appear in the film, but if I have the power I would suggest Apocalypse or Mr. Sinister to be the main antagonist. Feel free to express your opinions, which actor should play the role of each character I suggested and consider any other X-Force member that I missed out who should appear in the film. Don't want to start an argument. What do you think guys? :)