Patrick Dempsey (left) and Weston Masset
04/30/2012 at 10:45 AM EDT
The Avengers, move over.
played a real-life action hero last week, when, using a crowbar, a fire extinguisher and quick timing, the Grey's Anatomy
star pulled a teenage boy to safety after his car flipped over near Dempsey's Malibu, Calif., home.
"I was scared for my life. I was upside down," driver Weston Masset, 17, told ABC News
after he lost control of his Mustang, which rolled over three times, trapping and leaving him barely conscious. (Watch the interview here
After rescuing Masset, Dempsey, a father himself
, called paramedics and stayed by the teen's side along with his wife Jillian and three neighbors as Masset was airlifted to the hospital. He was treated for a concussion and an eye injury and is expected to make a full recovery.
Seeing TV's Dr. Derek Shepherd standing before him at the crash site, Masset asked Dempsey, " 'Are you famous?' " Replied the actor: "Yeah, I'm a doctor."
Dempsey, 46, also called Masset's mother to apprise her of her son's situation.
"He had a certain authority in his voice," said a "super-grateful" Mary Beth Masset. "I asked if he was a paramedic and he said, 'No, this is Patrick Dempsey.' I thought, 'McDreamy?' "
Added her son, smiling through the braces on his teeth, "He was there for me. It would have been a lot worse without him."
Dempsey's reps declined to comment on the star's heroics, Robin Roberts said on Good Morning America