| Name | Gender | Appearances | Top Performance |
|---|---|---|---|
| David Caselli | Male | 2 | 69th |
| Rachael Cashin | Female | 4 | 7th |
| Georgia Cassidy | Female | 2 | 20th |
| Fernando Castillo Alvarez | Male | 1 | 137th |
| Graham Cate | Male | 1 | 69th |
| Gerry Caulebaut | Male | 2 | 6th |
| Léa Caurant | Female | 1 | 88th |
| Russell Cavanagh | Male | 1 | 21st |
| Will Caver | Male | 1 | 15th |
| Alex Cecioni | Male | 3 | 1st |
| Andrea Cervia | Male | 1 | 23rd |
| Oscar Chalupsky | Male | 1 | 5th |
| Chris Chambers | Male | 1 | 19th |
| Dave Chambers | Male | 3 | 19th |
| Owen Chambers | Male | 1 | 29th |
| Tasha Chambers | Female | 2 | 47th |
| Gary Chan | Male | 1 | 32nd |
| Valerie Chan | Female | 1 | 43rd |
| Giulio Chapman-Olla | Male | 1 | 38th |
| Guilio Chapman-Olla | Male | 1 | 40th |
Retrieving Competitors