The series, from Jeff Eastin ("White Collar"), revolves around a group of diverse law-enforcement agents from the DEA, FBI and Customs who are forced to live together in an undercover beach house in Southern California.
The second season ended with a cliffhanger, leaving the fate of Tveit's character in question.
Read the recent Playbill.com feature: Catch Him If You Can: Aaron Tveit on "Graceland," Coming Back to Broadway and Tveiter Tots
"This season of 'Graceland' took viewers on a wild ride with unexpected character twists, and a heart-stopping cliffhanger that left a lead character's fate in question," USA Network president Chris McCumber said in a statement. "Jeff Eastin and the talented ensemble cast deliver on all levels, and season three will undoubtedly continue to keep us on the edge of our seats."