(written from a Production point of view)
Grant Garrison is an actor who played a 25th century Starfleet cadet in the Star Trek: Voyager seventh season episode "Endgame". His costume was sold off on the It's A Wrap! sale and auction on eBay. 
Garrison made guest appearances in television series such as Walker, Texas Ranger (1997, with Clarence Williams III), Buffy the Vampire Slayer (1999, with Armin Shimerman and Harry Groener), JAG (2001, with Tucker Smallwood and stunt coordinated by Diamond Farnsworth), CSI: Crime Scene Investigation (2001, with Kate McNeil), Monk (2004, with Jeremy Roberts, Marc Marosi, and Stanley Kamel), and Surface (2005, with Conor O'Farrell, Eric Pierpoint, and Randy Oglesby), and appeared in the films Arlington Road (1999, with Lin Oeding, Steve Blalock, Vince Deadrick, Vince Deadrick, Jr., and Scott Workman), and The Island (2005, with Ethan Phillips, Noa Tishby, Katy Boyer, Glenn Morshower, Randy Oglesby, Michael Canavan, Kevin Derr, Denney Pierce, Justin Sundquist, Spice Williams-Crosby, and screenplay written by Alex Kurtzman and Roberto Orci).