Bruce Willis was 36 in National Lampoon's Loaded Weapon 1 when he played the character 'John McClane (uncredited)'.
That was over 31 years ago in 1993.
Today he is 68, and has starred in 152 movies in total, 126 of those since National Lampoon's Loaded Weapon 1 was released.
In National Lampoon's Loaded Weapon 1, I think Bruce Willis looks: