The twist in Thursday's episode of CNBC's "Jay Leno's Garage" involves Debbie Evans, a professional stuntwoman of nearly 40 years who is the unfamiliar face behind some of film's most familiar action scenes.

In "The Matrix Reloaded," she grinds against a highway wall and dodges airborne cars as a double for Carrie-Anne Moss's character, Trinity. In the "Fast and Furious" series, she drives underneath a semi-truck and flips her car into an embankment beside the road. She stands on motorcycle seats, jumps through glass and rides through fire.