| Name | Gender | Appearances | Top Performance |
|---|---|---|---|
| Ani Mcloughlin | Male | 1 | 11th |
| Liam McMaster | Male | 1 | 19th |
| Karl McMurtrie | Male | 3 | 1st |
| Luke Mcnish | Male | 7 | 3rd |
| Simon McQueen | Male | 4 | 18th |
| Ruby Mcsweeney | Female | 1 | 5th |
| Alan McVicar | Male | 2 | 4th |
| Iain McVicar | Male | 1 | 10th |
| Kim Mcvicker | Female | 2 | 48th |
| Esteban Medina | Male | 1 | 3rd |
| Max Meffan | Male | 1 | 22nd |
| Rebecca Mehew | Female | 5 | 33rd |
| Simon Melgren | Male | 2 | 20th |
| Peter Melling | Male | 1 | 13th |
| Lorraine Mellors | Female | 1 | 18th |
| James Mellsop | Male | 1 | 84th |
| Daniel Menéndez | Male | 1 | 26th |
| Ray Mennie | Male | 7 | 12th |
| Glen Menzies | Male | 1 | 29th |
| Ian Mercer | Male | 16 | 5th |
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