Lane Garrison joins the cast as Randy

According to IMDb Lane Garrison joins Camp X-Ray as Randy.
Lane Garrison is an American actor, best known for the role of David "Tweener" Apolskis on the television series "Prison Break" (2005). At 17 and unable to get along with his mother, he left home and moved in with Joe Simpson--the manager and father of pop stars Jessica Simpson and Ashlee Simpson. Garrison graduated from J.J. Pearce High School in Richardson, Texas, in 1998 and, at 18, drove to Los Angeles, California, to become an actor. His first job was a backpack commercial that paid US$3,500. Garrison completed work on the second season of "Prison Break" (2005). He has appeared in several movies playing minor roles: Quality of Life (2004) as Heir; Crazy (2008/II) as Billy Garland; and recently landed a role in the movie Shooter (2007/I). 
IMDB Camp X-Ray page has also added a location manager (Lisa Hoover) and set decorator (Adam Willis)