Some of the interesting cast members of 'Dancing with the Stars' ('DWTS') Season 21 have been named. Latest reports have revealed that Wildlife conservationist and actress Bindi Irwin, Backstreet Boys member Nick Carter and actress Alexa PenaVega are joining the cast list.

'DWTS' season 21 premieres September 14 on ABC. The upcoming season will be pretty intense, as there will be great addition to the cast.

ABC has recently reported that the Wildlife conservationist and actress Bindi Irwin has been named as the first celebrity dancer for Season 21 cast of the popular American dance competition show. She is the daughter of Crocodile Hunter Steve Irwin and Terri Irwin and appeared in Australian wildlife shows "Bindi: The Jungle Girl," "Bindi's Bootcamp," and "Steve Irwin's Wildlife Warriors." She has also honed her acting career by starring in the movies "Free Willy: Escape from Pirate's Cove" and "Return to Nim's Island". Additionally, Bindi has bagged the Australian Geographic Society's Young Conservationist of the Year, an honor that she dedicated to her late father, Steve Irwin.

According to her bio on the Australia Zoo's website, Irwin "loves to sing and dance, particularly about wildlife" and has her own dance troupe, "The Jungle Girls."

Meanwhile, one member of the great boy band Backstreet Boys, Nick Carter, is also joining the 'DWTS' season 21 cast. According to Hollywood Life, Nick is currently filming Syfy's new TV movie, Dead 7, alongside his bandmates Howie Dorough and A.J. McLean.

Actress Alexa PenaVega is also hitting the dancefloor next season. PenaVega is best known for her role as Carmen Cortez in the "Spy Kids" movies. She is also seen in the ABC TV series 'Nashville' and The CW's 'The Tomorrow People'.

According to ABC, Derek Hough, Mark Ballas, Karina Smirnoff, Witney Carson, Valentin Chmerkovskiy, Allison Holker, Artem Chigvintsev, Peta Murgatroyd, and Sharna Burgess are returning to the dance floor to rehearse the opening number for the 'DWTS' season 21.