Christian Slater was 26 in Austin Powers: International Man of Mystery when he played the character 'Easily Fooled Security Guard (uncredited)'.
That was over 27 years ago in 1997.
Today he is 54, and has starred in 108 movies in total, 71 of those since Austin Powers: International Man of Mystery was released.
In Austin Powers: International Man of Mystery, I think Christian Slater looks: