Gregg grew up in the suburbs of Philadelphia racing motorcycles, while at the same time pursuing a career as a stuntman along with his brothers Brett and Brian. Winning multiple championships as an amateur, Gregg turned pro and competed in the AMA Formula One series riding a Yamaha TZ750. The highlight of Gregg’s Formula One career, was when he won the 1983 AMA National held at the Pocono International Raceway and finished third overall in the championship that season. With his love for stunt work growing, Gregg moved to Hollywood CA to pursue his career as a stuntman full time.

Gregg’s first job in Hollywood was doubling James Remar on a motorcycle in the movie Quiet Cool. He went on to work on such films as, the original Ghost Busters, Masters of the Universe, Roger Rabbit, and Back to The Future 2 &3 to name a few. His mechanical knowledge from racing led him into the world of Stunt Rigging, where he and his brother began designing and building new innovative equipment that would push the boundaries while improving safety. Gregg went on to become the Stunt Rigging Coordinator on the film Waterworld, where during filming, Gregg took a piece of sailing equipment and modified it into what is now referred to in the rigging world as the rope clutch. A necessary tool carried in every stunt rigger’s equipment package today.

Over the next few years, Gregg began stunt coordinating on films such as Men In Black, Face Off, Mission Impossible 2, Windtalkers, and Paycheck. Working alongside John Woo, Gregg absorbed as much knowledge as he could from this action icon. Gregg went on to work on the hit TV show Alias, as well as the Lost Pilot with JJ Abrams. In 2009, Gregg teamed up with Tom Cruise on the film Knight and Day, and with the success of this film, Tom requested Gregg to stunt coordinate Mission Impossible 4. It was on this film that Gregg took stunt rigging literally to new heights, filming the spectacular Burj Khalif building sequence in Dubai.

Gregg began his 2nd unit directing career on Percy Jackson and the Lightning Thief. After the successful completion of this film, Gregg once again teamed up with Tom Cruise where he was asked to design a motorcycle chase sequence and to be the 2nd unit director for the film Mission Impossible 5. During the prep of the film, Gregg designed a completely new way of manipulating a motorcycle with an actor in a safe manner at high speeds, as well as designed a new innovative telescoping camera arm and shooting platform in which to film it.

With his love of motorsports back in the forefront, Gregg teamed up with Michael Bay for the film Six Underground, where they collaborated to design the exciting driving sequence which was filmed in Rome, Italy. His next project was Red Notice, where he designed and prepped a motorcycle / car chase through the streets of Italy. With only 12 days to go until shooting would begin, Covid -19 hit Italy hard, shutting the production down. Unfortunately, due to Covid, that sequence was never filmed and written out of the script due to budget constraints.

Gregg once again teamed up with JJ Abrams to shoot the TV Pilot on a new series called Duster, set in the 1970’s Southwest about the life of a gutsy getaway driver for a growing crime syndicate.

Gregg is currently working with John Woo on a remake of The Killer which is currently filming in Paris, France.

When not working, Gregg and his wife enjoy riding his motorcycle on cross country trips, 4 wheeling in their Jeep, and spending time with family and friends.