| Artist name | Roles | Recordings |
|---|---|---|
| Circle of Dust | ||
| Celldweller |
| Artist name | Roles | Recordings |
|---|---|---|
| Circle of Dust | ||
| Celldweller |
| Artist name | Roles | Recordings |
|---|---|---|
| Circle of Dust | remixer | Levler 1 (Easier to Hate), Levler 2 (Alone to Die) |
| Celldweller | engineer | The Last Firstborn |