He works with the 'Earth Communications Office' to educate the entertainment industry about environmental issues.
Played Giovanni in the world premiere rock musical version of "'Tis A Pity She's A Whore."
While in high school, he managed to get cast in a rival high school's theater production.
After high school he became an active member of the "West Coast Ensemble" group doing live theater.
He has a fondness for dogs and has owned many over the years.
He did most of his own acrobatic riding in the show The Young Riders.
He performed in a radio broadcast of "Old Coyote," the true story of Ben Old Coyote.
During the filming of The Young Riders, he had a pet lizard named Sulu.
He plays the acoustic guitar "a little bit."
Gregg's favorite cars are old Ramblers and Studebakers.
He was named one of Us magazine's "10 Sexiest Bachelors" for 1989.
He wanted to be an actor after seeing the movie Oliver when he was in the sixth grade.
He is left handed.
One of his favorite authors is Douglas Adams.
He has Cherokee and Osage roots.
He has one brother and three sisters.
His favorite food is Thai.
Gregg: If you love something and you want to do it...put yourself out there, do everything you can. If you stick it out, you're gonna do it.