'MacGyver': Cool Gadgets, Wild Stunts and Plenty of Explosives

Body doubles—and a whole lotta green screens—help the show’s stunts look like the real deal while keeping the stars safe. Sometimes Till gets so into the action that, well, he forgets he has lines! “I once was scaling a building with suction cups from the bottom of a bathroom cleaner can,” he recalls. “I was up at least 25 feet in this harness and trying to hold on and they were screaming ‘Now act! Act!’” he says.

“Because George and I work really well together, filming stunts goes quick,” Till says. “We grunt at each other and understand what’s going on.” How does Till feel with his life literally in Eads’s hands in some scenes, as pictured here? “He’s the most stable, dependable part of the wild, wacky ride that is the show,” says the actor.

Eads and Till experienced a first in this episode: throwing punches at each other. “The flashback starts out with us fighting,” Till says. Eads, however, may have gotten too into the tussle. “George elbowed me in the sternum for real every take,” Till recalls with a laugh. “He definitely added some flavor.”

Funnyman Justin Hires (photobombed by costar Tristin Mays) always knows how to stir up a good time on set. But this season, as his alter ego, Wilt Bozer, goes deep into operative training, Hires has gotten to show off some impressive dramatic acting chops. His fellow actors have taken notice. “George and I would catch Justin’s scenes,” Till says, “and we’d have to redo our makeup because we were in tears watching him!”

Till admits that working with the gadgets Mac creates out of ordinary household items (like the pocketknife seen on the back of this director’s chair) has gotten easier in Season 2. In fact, he now masters the “MacGyvering” in under five minutes. “It’s similar to choreography—you’re memorizing all the moves,” he says.

Computer hacker Riley (Mays) can get past the toughest of firewalls with her eyes closed. But now that she’s venturing into the field more, those eyes better be wide open. “We use these paintball guns that shoot balls called zerks, which explode and spark,” Till explains. “George and I both had the sparks hit us right in the face and producers said, ‘That’s just how we want it!’”