| Name | Gender | Appearances | Top Performance |
|---|---|---|---|
| Kendall Shoulders Belton | Female | 1 | |
| Kendall Shuker | Female | 1 | 163rd |
| Cara Sibtsen | Female | 2 | 20th |
| Double Simon Woods & Caitlin Ruddle | Male | 1 | 36th |
| Craig Simpkins | Male | 4 | 1st |
| Aimee Simpson | Female | 1 | 16th |
| Blair Simpson | Male | 21 | 3rd |
| Dene Simpson | Female | 9 | 13th |
| Emma Simpson | Female | 1 | 7th |
| Paul Sinclair | Male | 5 | 10th |
| Jan Sippel | Female | 1 | 34th |
| Emma Sissons | Female | 1 | 31st |
| Mary Sissons | Female | 1 | 78th |
| Neve Sissons | Female | 1 | 3rd |
| Trent Sissons | Male | 1 | 83rd |
| Kate Skeels | Female | 8 | 3rd |
| Eve Skewes | Female | 1 | 15th |
| Taine Slaughter | Male | 1 | 3rd |
| James Slessor-White | Male | 3 | 9th |
| Pete Sloane | Male | 3 | 9th |
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