Name	Known for
Jason Dundas Self - Host Self - Host See fewer	Fool's Gold (I) (2008)
Adam Lambert Self - Judge Self - Judge See fewer	2012 (I) (2009)
Iggy Azalea Self - Judge Self - Judge See fewer	Furious 7 (2015)
Mel B Self - Judge (as Melanie Brown) Self - Judge (as Melanie Brown) See fewer	Spice World (1997)
Guy Sebastian Self - Judge Self - Judge See fewer	Australian Idol (2003)
Sami Afuni Self Self See fewer	Spit (2025)
Beatz Themselves - Contestants Themselves - Contestants See fewer	The X Factor (2005)
Brentwood Themselves - Contestants Themselves - Contestants See fewer	The X Factor (2005)
Isaiah Firebrace Self - Contestant (as Isaiah Firebace) Self - Contestant (as Isaiah Firebace) See fewer	Jessica Mauboy: All the Hits Live (2017)
Amalia Foy Self - Contestant Self - Contestant See fewer	The X Factor (2005)
Timmy Knowles Self - Contestant Self - Contestant See fewer	A Day in a Mother's Life (2019)
Zara Larsson Self - Performer Self - Performer See fewer	Klaus (2019)
Jessica Mauboy Self - Performer Self - Performer See fewer	The Sapphires (2012)
Maddison Milewski Self - Contestant Self - Contestant See fewer	The X Factor (2005)
Montage Themselves - Contestants Themselves - Contestants See fewer	The X Factor (2005)
Natalie Ong Self - Contestant Self - Contestant See fewer	The X Factor (2005)
Sheldon Riley Self - Contestant Self - Contestant See fewer	The Voice (2012)
Chynna Taylor Self - Contestant Self - Contestant See fewer	The Voice (2012)
Time and Place Themselves - Contestants Themselves - Contestants See fewer	The X Factor (2005)
Davey Woder Self - Contestant Self - Contestant See fewer	The X Factor (2005)