| Musician | Appearances |
|---|---|
| Perry Farrell | 4 albums |
| Dave Navarro | 4 albums |
| Stephen Perkins | 4 albums |
| Eric Avery | 2 albums |
| Chris Chaney | 2 albums |
| Michael "Flea" Balzary | 1 album |
| Charlie Bisharat | 1 album |
| Dionna Brooks-Jackson | 1 album |
| Ronnie S. Champagne | 1 album |
| Christopher Dowd | 1 album |
| Aaron Embry | 1 album |
| Mike Finnigan | 1 album |
| John Hill | 1 album |
| Kim Hill | 1 album |
| Cindy Lair | 1 album |
| Jamie Mahoberac | 1 album |
| Angelo Moore | 1 album |
| Scott Page | 1 album |
| Zack Ray | 1 album |
| John Shanks | 1 album |
| John Philip Shenale | 1 album |
| David Sitek | 1 album |
| Geoff Stradling | 1 album |