| Name | Gender | Appearances | Top Performance |
|---|---|---|---|
| Tom Cole | Male | 2 | 4th |
| Bruce Colebaker | Male | 1 | 19th |
| Jaden Collie | Male | 7 | 1st |
| Rodney Collier | Male | 3 | 10th |
| Joe Collins | Male | 2 | 1st |
| Rob Collins | Male | 1 | 9th |
| Guy Collyer | Male | 1 | 25th |
| Kahu Colombani | Male | 1 | 37th |
| Steven Comber | Male | 4 | 74th |
| Jacob Coneglan | Male | 1 | 5th |
| Emma Conley | Female | 2 | 6th |
| Sam Conley | Male | 1 | 8th |
| Sam Connor | Male | 1 | 33rd |
| Sam Connor | Male | 1 | 20th |
| Dean Conrad | Male | 12 | 13th |
| Santiago Consuegra | Male | 1 | 140th |
| Dave Conway | Male | 1 | 2nd |
| Bowen Cook | Male | 2 | 6th |
| Nevalle Coombe | Male | 2 | 17th |
| Georgia Coomber | Female | 1 | 13th |
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