Two new Australian trainers, Michelle Bridges and Shannan Ponton, were introduced to replace the previous American trainers Bob Harper and Jillian Michaels who reprised their role temporarily. Although Michelle states she doesn't like the format of the reality television show, she feels in the end it is helping change people's lives. Jillian was ridiculed for participating in the Australian version and not the American version, she stated that the Australian show represented her more accurately. Contestants were also introduced to former SAS soldier Steve Willis, dubbed "The Commando". Bob and Jillian left at the end of the second week, revisiting in the eighth week for a final time.