| Name | Gender | Appearances | Top Performance |
|---|---|---|---|
| Team Shepherd | Male | 1 | 52nd |
| India-Rose Sheppard | Female | 1 | 80th |
| Jerry Sheppard | Male | 13 | 4th |
| Nathan Sheppard | Male | 3 | 12th |
| Sam Shergold | Male | 8 | 4th |
| Johnny Sherry | Male | 1 | 99th |
| Connor Shivnan | Male | 1 | 4th |
| Paige Shotter | Female | 3 | 12th |
| Kendall Shoulders Belton | Female | 1 | |
| Kendall Shuker | Female | 1 | 163rd |
| Cara Sibtsen | Female | 2 | 20th |
| 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 |
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