Nikolai Nikolaeff (born December 26, 1981) is an Australian actor who portrayed Dominic Hargan, the Rhino Ranger, in Power Rangers: Jungle Fury. Niko began acting at the age of twelve and enrolled himself into the Victorian Youth Theatre. He attended school at Caulfield Grammar School and at sixteen, Niko landed a lead role in Crash Zone which led to a number of roles in other children's television series. He took an Arts degree at Monash University in Caulfield.