| Artist name | Roles | Recordings |
|---|---|---|
| Martin Orford | ||
| Steven Wilson (founder of Porcupine Tree) |
| Artist name | Roles | Recordings |
|---|---|---|
| Martin Orford | acoustic guitar, guitar | A Part of Me, The Field of Fallen Angels, The Final Solution |
| Steven Wilson | guitar | Don’t Hate Me, My Book of Regrets |