(written from a Production point of view)
Johnny Martin (born 12 January 1963; age 54) is a stuntman, stunt actor and stunt coordinator who performed stunts in several episodes of Star Trek: Deep Space Nine and Star Trek: Voyager. He received no credit for his appearances. His costume as stunt double for Matt E. Levin in the episode "Nemesis" was later sold off on the It's A Wrap! sale and auction on eBay. 
Martin was born in San Leandro, California. He has founded the production company "Martini Films" in 2003. His resume as stuntman, stunt coordinator, second unit director, and producer includes over 350 films and television series. In 2001 he was nominated for an Taurus World Stunt Award for co-coordinating best action sequence for Gone in Sixty Seconds.
His resume includes films such as Willow (1988), Terminator 2: Judgment Day (1991, with Jenette Goldstein, Earl Boen, Nikki Cox and Joel Kramer), Made in America (1993, with Whoopi Goldberg and Clyde Kusatsu), Village of the Damned (1995, with Kirstie Alley), Se7en (1995), The Rock (1996, with Tony Todd, Tom Towles, and Mic Rodgers), Wishmaster (1997, with Kane Hodder), Titanic (1997, with Jenette Goldstein, Michael Ensign, and Lynn Salvatori), Starship Troopers (1997, with Dina Meyer, Clancy Brown, and Brenda Strong), Safe House (1998, with Patrick Stewart and Joy Kilpatrick), Wishmaster 2: Evil Never Dies (1999, with Vyto Ruginis, Eileen Weisinger, and Jeff Cadiente), Inspector Gadget (1999, with Rene Auberjonois, Andy Dick, Brad Blaisdell, Richard Penn, Brian George, and Michael McAdam), Pay it Forward (2000, with Tina Lifford), The Matrix Reloaded (2003, with Anthony Zerbe and Tim Trella), and Live Free or Die Hard (2007, with Mark Chadwick, Shawn Crowder, and Boni Yanagisawa).