Kodi Smit-McPhee was 21 in Once Upon a Deadpool when he played the character 'Kurt Wagner / Nightcrawler (uncredited)'.
That was over 5 years ago in 2018.
Today he is 27, and has starred in 31 movies in total, 6 of those since Once Upon a Deadpool was released.
In Once Upon a Deadpool, I think Kodi Smit-McPhee looks: