AGE: 18

HOMETOWN: Los Angeles

HERO WORSHIP: His mad skills as the lead of Percy Jackson & the Olympians: The Lightning Thief so impressed director Paul W. S. Anderson that Logan was cast sans audition as swordsman D’Artagnan in The Three Musketeers 3-D reboot. He insists it’s a stretch: “I’m used to playing más of the nerd.”

ON THE PERKS OF BEING A WALLFLOWER: He’ll soon play a loner opposite Emma Watson in her first big-screen appearance since Harry Potter.

MOVIES 101: Logan hopes to direct and score his own films one day, but for now he’s putting college on hold. “Being on set is the best film school there is.”