Why Is Colossus Always Metal in Deadpool?

Deadpool: Colossus stayed in metal form because he was hurt in a recent fight and needed to heal.

Why is Colossus different in Deadpool?

According to a new visual effects breakdown video from Wired, it actually took five actors in total to create the character of Colossus: one on set in a motion-capture suit and some serious lifts, another as the voice, another as the facial model, and finally another using motion-capture in a studio setting.

Is Colossus stuck in metal form?

Colossus' facial actor Greg Lasalle spoke recently to Comicbook.com and explained that the character will remain in his metallic form for the duration of the film: Well actually, this film he's only in his metal form.