Dylan O’Brien just debuted a wildly dramatic makeover ... the Maze Runner star debuts a blonde buzz cut. And to say he looks like an entirely different person would be a gross understatement.

One Twitter user recently wrote, "Whoever decided to give dylan o'brien a blonde buzz cut i hope your pillow is cold on both side and your phone is always charged." The person in question ...

Dylan O’Brien is having a blond moment ... Seconds later, the “Maze Runner” actor removes his apron, revealing the fresh cut and dye job. “U guys asked and we delivered.