| Musician | Appearances |
|---|---|
| Danny Carey | 5 albums |
| Adam Jones | 5 albums |
| Maynard Keenan | 5 albums |
| Justin Chancellor | 4 albums |
| Brian "Lustmord" Williams | 2 albums |
| David Bottrill | 1 album |
| Paul D'Amour | 1 album |
| Marko Fox | 1 album |
| Camella Grace | 1 album |
| Bill McConnell | 1 album |
| Chris Pitman | 1 album |
| Pete Riedling | 1 album |
| Henry Rollins | 1 album |
| Eban Schletter | 1 album |