The Biggest Loser Australia

• 
  Michelle Bridges
  Self - Trainer
• 
  Jillian Michaels
  Self - Trainer - Red Team
• 
  Bob Harper
  Trainer - Blue Team
• 
  Ajay Rochester
  Self
• 
  Shannan Ponton
  Self - Trainer of the Blue Team
• 
  Hayley Lewis
  Self - Host
• 
  Steve Willis
  The Commando - Trainer of the Black Team
• 
  Fiona Falkiner
  Self - Host
• 
  Simmo Baker King
  Self - Contestant
• 
  Libby Babet
  Self - Trainer of the Orange Team
• 
  Glenn Mackintosh
  Self - Psychologist
• 
  Nick McKay
  Self - Narrator
• 
  Tiffiny Hall
  Self - Trainer
• 
  Andrew Rochford
  Self
• 
  Hayden Quinn
  Self - Chef
• 
  Sarah Wilson
  Self - Chef
• 
  Tobie Puttock
  Self - Chef

• Ian Stevenson
• Richard Smead
• Simon Francis

• Gregor Salmon
  ...
  (series writer)
• Vin Hedger
• Squeen Holzen
  ...
  (story assistant)