This is a complete list of all the Australian Idol past contestants from Seasons 1 to 8.
Australian Idol Past Contestants
| CONTESTANT | AGE | HOMETOWN | SEASON | POSITION |
|---|---|---|---|---|
| Guy Sebastian | 21 | Paradise, South Australia | 1 | Winner |
| Shannon Noll | 27 | Condobolin, New South Wales | 1 | Runner-up |
| Cosima De Vito | 26 | Perth, Western Australia | 1 | 3rd |
| Paulini Curuenavuli | 20 | Wiley Park, New South Wales | 1 | 4th |
| Rob Mills | 21 | Melbourne, Victoria | 1 | 5th |
| Levi Kereama | 19 | Brisbane, Queensland | 1 | 6th |
| Rebekah LaVauney | 25 | Liverpool, New South Wales | 1 | 7th |
| Kelly Cavuoto | 22 | Adelaide, South Australia | 1 | 8th |
| Lauren Buckley | 17 | East Gosford, New South Wales | 1 | 9th |
| Cle Wootton | 22 | Perth, Western Australia | 1 | 10th |
| Peter Ryan | 27 | Tabulam, New South Wales | 1 | 11th |
| Mathew Chadwick | 20 | Gold Coast, Queensland | 1 | 12th |
| Courtney Act | 21 | New South Wales | 1 | 13th |
| Casey Donovan | 16 | Bankstown, New South Wales | 2 | Winner |
| Anthony Callea | 21 | Point Cook, Victoria | 2 | Runner-up |
| Courtney Murphy | 24 | Perth, Western Australia | 2 | 3rd |
| Hayley Jensen | 21 | Canberra, Australian Capital Territory | 2 | 4th |
| Chanel Cole | 26 | Bega, New South Wales | 2 | 5th |
| Marty Worrall | 26 | Kerang, Victoria | 2 | 6th |
| Ricki-Lee Coulter | 18 | Gold Coast, Queensland | 2 | 7th |
| Daniel Belle | 21 | Sydney, New South Wales | 2 | 8th |
| Emelia Rusciano | 25 | Adelaide, South Australia | 2 | 9th |
| Amali Ward | 16 | New Town, Tasmania | 2 | 10th |
| Dan O’Connor | 25 | Mount Annan, New South Wales | 2 | 11th |
| Angie Narayan | 26 | Brisbane, Queensland | 2 | 12th |
| Kate DeAraugo | 19 | Bendigo, Victoria | 3 | Winner |
| Emily Williams | 20 | Inala, Queensland | 3 | Runner-up |
| Lee Harding | 22 | Frankston North, Victoria | 3 | 3rd |
| Dan England | 21 | Queensland | 3 | 4th |
| Daniel Spillane | 25 | Brisbane, Queensland | 3 | 5th |
| Anne Robertson | 22 | Sydney, New South Wales | 3 | 6th |
| James Kannis | 19 | Sydney, New South Wales | 3 | 7th |
| Milly Edwards | 17 | Mount Eliza, Victoria | 3 | 8th |
| Roxane LeBrasse | 22 | Sydney, New South Wales | 3 | 9th |
| Laura Gissara | 21 | Melbourne, Victoria | 3 | 10th |
| Natalie Zahra | 17 | Innisfail, Queensland | 3 | 11th |
| Chris Luder | 26 | Brisbane, Queensland | 3 | 12th |
| Tarni Stephens | 27 | Brisbane, Queensland | 3 | 13th |
| Damien Leith | 30 | County Kildare, Ireland | 4 | Winner |
| Jessica Mauboy | 17 | Darwin, Northern Territory | 4 | Runner-up |
| Dean Geyer | 20 | Melbourne, Victoria | 4 | 3rd |
| Chris Murphy | 30 | Perth, Western Australia | 4 | 4th |
| Ricky Muscat | 22 | Werribee, Victoria | 4 | 5th |
| Lisa Mitchell | 16 | Albury, New South Wales | 4 | 6th |
| Bobby Flynn | 25 | Byron Bay, New South Wales | 4 | 7th |
| Lavina Williams | 27 | New South Wales | 4 | 8th |
| Guy Mutton | 29 | Gold Coast, Queensland | 4 | 9th |
| Klancie Keough | 24 | Richmond, Queensland | 4 | 10th |
| Reigan Derry | 17 | Maida Vale, Western Australia | 4 | 11th |
| Joseph Gatehau | 18 | Ashcroft, New South Wales | 4 | 12th |
| Natalie Gauci | 25 | Melbourne, Victoria | 5 | Winner |
| Matt Corby | 16 | Cronulla, New South Wales | 5 | Runner-up |
| Carl Riseley | 24 | Sydney, New South Wales | 5 | 3rd |
| Marty Simpson | 20 | Forresters Beach, New South Wales | 5 | 4th |
| Tarisai Vushe | 20 | Sydney, New South Wales | 5 | 5th |
| Daniel Mifsud | 23 | Mortdale, New South Wales | 5 | 6th |
| Ben McKenzie | 16 | Gosford, New South Wales | 5 | 7th |
| Jacob Butler | 25 | Mount Gambier, South Australia | 5 | 8th |
| Mark Da Costa | 28 | Petersham, New South Wales | 5 | 9th |
| Lana Krost | 17 | Perth, Western Australia | 5 | 10th |
| Brianna Carpenter | 21 | Brisbane, Queensland | 5 | 11th |
| Holly Weinert | 20 | Mildura, Victoria | 5 | 12th |
| Wes Carr | 26 | Bondi, New South Wales | 6 | Winner |
| Luke Dickens | 25 | Young, New South Wales | 6 | Runner-up |
| Mark Spano | 26 | Brighton, Victoria | 6 | 3rd |
| Teale Jakubenko | 22 | Yatala, Queensland | 6 | 4th |
| Chrislyn Hamilton | 17 | Scarborough, Queensland | 6 | 5th |
| Roshani Priddis | 21 | Ashfield, New South Wales | 6 | 6th |
| Sophie Paterson | 23 | London, England | 6 | 7th |
| Thanh Bui | 25 | Abbotsford, Victoria | 6 | 8th |
| Madam Parker | 23 | Beverly Hills, New South Wales | 6 | 9th |
| Tom Williams | 16 | Adelaide, South Australia | 6 | 10th |
| Brooke Addamo | 17 | Werribee, Victoria | 6 | 11th |
| Jonny Taylor | 22 | Perth, Western Australia | 6 | 12th |
| Stan Walker | 19 | Melbourne, Victoria | 7 | Winner |
| Hayley Warner | 18 | Sydney, New South Wales | 7 | Runner-up |
| James Johnston | 19 | Wingham, New South Wales | 7 | 3rd |
| Nathan Brake | 17 | Guildford, New South Wales | 7 | 4th |
| Toby Moulton | 30 | Melrose, South Australia | 7 | 5th |
| Kate Cook | 26 | Lowood, Queensland | 7 | 6th |
| Kim Cooper | 21 | Melbourne, Victoria | 7 | 7th |
| Scott Newnham | 20 | Melbourne, Victoria | 7 | 8th |
| Tim Johnston | 28 | Newcastle, New South Wales | 7 | 9th |
| Sabrina Batshon | 24 | Rhodes, New South Wales | 7 | 10th |
| Casey Barnes | 30 | Tasmania | 7 | 11th |
| Ashleigh Toole | 18 | Central Coast, New South Wales | 7 | 12th |
| Amali Dimond | 16 | Shellharbour, New South Wales | 8 | |
| Angelina Curtis | 15 | Perth, Western Australia | 8 | |
| Anya Hynninen | 19 | Selby, Victoria | 8 | |
| Harry Hayden | 18 | Melbourne, Victoria | 8 | |
| Josh Hannan | 20 | Mount Evelyn, Victoria | 8 | |
| Phoebe Stewart | 15 | Busselton, Western Australia | 8 | |
| Royston Sagigi-Baira | 23 | Far North Queensland | 8 | |
| Sash Seabourne | 25 | Margaret River, Western Australia | 8 | |
| Ben Sheehy | 24 | Brisbane, Queensland | 8 | |
| Noora H | 27 | Sydney, New South Wales | 8 | |
| Jasey Fox | 26 | Central Coast, New South Wales | 8 | 11th |
| Maya Weiss | 28 | Melbourne, Victoria | 8 | 12th |
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