(written from a Production point of view)
Tom Vicini is a short-statured actor and stunt performer who served as the stand-in for Michael Welch in Star Trek: Insurrection. He received no credit for his work. Because of his height he works as stand-in and stunt double for kids. Vicini is well known for his performance as the Hamburglar in several television commercials for McDonalds.
As a stand-in he has worked on films such as Tales from the Crypt: Demon Knight (1995, as body double for John Kassir), Richie Rich's Christmas Wish (1998), The Benchwarmers (2006), and Nancy Drew (2007, with Rosemary Morgan and Thom Williams).
Vicini is also a stunt performers whose resume includes films such as The Amityville Horror (2005, with stunts by Shauna Duggins), The Island (2005, with Ethan Phillips, Noa Tishby, Kevin McCorkle, Katy Boyer, Randy Oglesby, Glenn Morshower, Michael Canavan, and stunts by Doug Coleman, Kevin Derr, Steve Kelso, Justin Sundquist, Spice Williams-Crosby, Scott Workman, and Christopher Leps), and Transformers (2007, with Andy Milder and Glenn Morshower, and written by Roberto Orci and Alex Kurtzman).