(written from a Production point of view)
Yannick Derrien (born 12 August 1949; age 72) is a stuntman, stunt actor, and stunt coordinator who served as stunt double for Bill Bolender in the Star Trek: Deep Space Nine second season episode "Blood Oath". He received no credit for his work and was identified by the name tag of his costume which was sold off on the It's A Wrap! sale and auction on eBay.  Derrien also worked as stunt double for Philip Anglim in the third season episode "Fascination".
Derrien started his stunt career in the late '80s and performed stunts in the action film Savage Harbor (1987), Blake Edwards' comedy Blind Date (1987, with John Larroquette, George Coe, Georgann Johnson, Momo Yashima, Armin Shimerman, and stunts by Donna Garrett, Gene LeBell, and Keii Johnston), Steven Spielberg's fantasy adventure Hook (1991), Sam Raimi's horror comedy Army of Darkness (1992, alongside Dennis Madalone, Patricia Tallman, Chuck Borden, George Colucci, B.J. Davis, Chris Doyle, Maria Kelly, Tom Morga, Janet Lee Orcutt, and Brian J. Williams), the action film Out for Blood (1993), the science fiction film Automatic (1994, starring Daphne Ashbrook and John Glover), the comic adaptation The Fantastic Four (1994, with Jay Underwood, Michael Bailey Smith, Joseph Culp, and stunts by Jeff Cadiente, Denney Pierce, and Jeff Pruitt), the science fiction film CyberTracker (1994) and its sequel Cyber-Tracker 2 (1995), the action film Steel Frontier (1995, with Kane Hodder and Robert O'Reilly), and the superhero movie Black Scorpion (1995, with Anita Hart and Rosine "Ace" Hatem).
He also served as stunt coordinator on the action thriller Live Wire (1992, with Tony Plana, Clement von Franckenstein, Mimi Cozzens, and stunts by LaFaye Baker, Rusty McClennon, Tom Morga, and Dennis Madalone) and performed stunts in the television series Crossbow (1987-1990).
Further stunt credits include the science fiction film The Silencers (1996, with Dennis Christopher, Clarence Williams III, Lance LeGault, and stunts by John Alden, Gary Baxley, and Cole McKay), the action film Savate (1997), the thriller The Pandora Project (1998, with Tony Todd), the horror remake House on Haunted Hill (1999, with Famke Janssen, Jeffrey Combs, and stunts by Rick Avery, Danny Downey, and Scott Leva), the action comedy Taxi 2 (2000) and its sequel Taxi 3 (2003), the action thriller Kiss of the Dragon (2001), and the thriller The Transporter (2002).
Derrien also served as stunt coordinator on the drama The Man in the Iron Mask (1998), Brian De Palma's thriller Femme Fatale (2002, with Gregg Henry), the television adventure Helen of Troy (2003, with John Rhys-Davies), and the mini series Dalida (2005).