(written from a Production point of view)
J. Mark Donaldson is a stuntman, stunt actor, and stunt coordinator who performed stunts in Star Trek: Insurrection.
He has doubled for stars such as Michael Douglas, Chris Cooper, and John Hawkes. Currently, Donaldson is serving as president of the Stuntmen's Association of Motion Pictures. 
Among his stunt resume are films such as Baby: Secret of the Lost Legend (1985), Walk Like a Man (1987, with Christopher Lloyd, Earl Boen, Ellen Albertini Dow, Megan Parlen, and stunts by Christine Ann Baur, Max Kleven, Mike Washlake, and Kim Washington), A Nightmare on Elm Street: The Dream Child (1989, with Lisa Wilcox, Michael Bailey Smith, and stunts by Vince Deadrick, Jr., Hubie Kerns, Steve Kelso, Bill McIntosh, Lynn Salvatori, Sharon Schaffer, Cherie Tash, and George Wilbur), Eve of Destruction (1991), Holy Matrimony (1994, with John Schuck, Jeffrey Nordling, Richard Riehle, Frank Novak, stunts by Joni Avery, Dan Barringer, Christine Ann Baur, Phil Culotta, B.J. Davis, Corey Michael Eubanks, and George Wilbur, and directed by Leonard Nimoy), Independence Day (1996), Mars Attacks (1996), Conspiracy Theory (1997, with Patrick Stewart), Lethal Weapon 4 (1998), Very Bad Things (1998, with Christian Slater), The Perfect Storm (2000, with Bob Gunton, Billy Mayo, and stunts by Brian Avery, Dan Barringer, Richard L. Blackwell, Joey Box, Mark Chadwick, Doug Coleman, Eliza Coleman, Dana Dru Evenson, Kurt D. Lott, and George Wilbur), Spider-Man 2 (2004, with Kirsten Dunst), Flags of Our Fathers (2006), Letters from Iwo Jima (2006), and the first two Pirates of the Caribbean films (2003 and 2006, with stunts by Mark Aaron Wagner, Lisa Hoyle, Tom Morga, Tony Angelotti, and Theo Kypri).
Donaldson has also performed stunts in television series such as Promised Land, Passions, The Practice (2000, with Jerome Butler, Bruce Davison, and stunts by Sonia Jo McDancer and Rick Avery), Everwood, and Ghost Whisperer (2006).