This is a list of known auditionees from Series 1 of The X Factor UK.
Episode 1
| Name | Age | Occupation | Song | Result | ||
|---|---|---|---|---|---|---|
| Cowell | Osbourne | Walsh | ||||
| Mario | 67 | Retired miner | Softly, as in a Morning Sunrise | — | — | — |
| Sweet Harmony | — | — | Let Me Entertain You | — | — | — |
| Chenai Zinyuku | 18 | Law student | Who's Loving You | ✔ | ✔ | ✔ |
| Sharon Hornsby | — | — | I Just Called to Say I Love You | — | — | — |
| Benjamin | — | Rapper | Family Guy (original song) | — | — | — |
| Joanna | 20 | Drama teacher | Let Me Entertain You | — | — | — |
| Iyce | — | — | Water Runs Dry | ✔ | ✔ | ✔ |
| G4 | 22-24 | Classic Opera students | Bohemian Rhapsody | ✔ | ✔ | ✔ |
| Gemini | — | — | Boys of Summer | — | — | — |
| Steve Brookstein | 35 | Pub singer | A Song for You | ✔ | — | — |
| Debbie | — | — | Because the Night | — | — | — |
| Sarah Louise | — | Beautician | Believe | — | — | — |
| Irene | 81 | Singer | Summertime | — | ✔ | ✔ |
| Steve Brookstein | 35 | Pub singer | Part-Time Love | ✔ | ✔ | ✔ |
| Michelle | 20 | Sales adviser | If I Ain't Got You | — | ✔ | — |
Gallery
Mario
Sweet Harmony
Chenai Zinyuku
Sharon Hornsby
Benjamin
Joanna
Iyce
G4
Gemini
Steve Brookstein's 1st audition
Debbie
Sarah Louise
Irene
Steve Brookstein's 2nd audition
Michelle
Unnamed Approved Acts
Unnamed Rejected Acts
Unnamed Acts with unknown fate
Episode 2
Gallery
Unnamed Approved Acts
Unnamed Rejected Acts
Unnamed Acts with unknown fate
Episode 3
Gallery
Unnamed Approved Acts
Unnamed Rejected Acts
Unnamed Acts with unknown fate
Episode 4
Gallery
Unnamed Approved Acts
Unnamed Rejected Acts
Unnamed Acts with unknown fate
Episode 5
Gallery
Unnamed Approved Acts
Unnamed Rejected Acts
Unnamed Acts with unknown fate