The actor behind Half-Life's G-Man based his iconic, halting delivery on the idea he was experiencing multiple timelines at once: 'His relationship to time is very different than you or I would think'

The G-Man looking at the camera.

As part of Valve's 20th anniversary Half-Life 2 documentary, Secret Tape (the same crew behind NoClip) spoke with some of the actors in the game's prominent roles. Among them, Barney Calhoun and G-Man voice actor Michael Shapiro explained some of his craft and theories behind the Half-Life series' iconic extradimensional stalker.

"The moment where you see him makes you realize there must be a lot of moments where you don't know he was watching you," Shapiro said of the character. In addition to G-Man's direct interventions in the story, he can also often be seen throughout Half-Life's levels, just out of reach and seemingly observing your progress.