Niles acting career started in 2004 with appearances on The Best Damn Sports Show Period as "Santa's Helper". Since then she has appeared in a variety of minor roles, guest appearances, and walk-on roles that include the television series' Gun X Sword (2005), Perfect 10 Model Boxing (2006), Gay, Straight or Taken? (2007, two episodes), Showtime's Californication, and the pilot episode for The Defenders.
Niles has been featured in numerous men's magazines such a Maxim (Germany, UK & US editions), Esquire (Turkey), FHM (UK), Complex, Tandem, and Hot Dog. She was also featured in the 2005 FastDates.com calendar with Playboy Cybergirl Michelle LaVoie. Niles was the cover model for the January/February Germany edition of Maxim.
Niles was a member of LA Temptation team in the 2006 Lingerie Bowl.
Niles has also appeared in several movies such as Dire Wolf (2009), Cheerleader Massacre 2 (2011), and the Twilight parody film Twiharder (2013).
