| Musician | Appearances |
|---|---|
| Eddie Jackson | 18 albums |
| Michael Wilton | 18 albums |
| Scott Rockenfield | 16 albums |
| Geoff Tate | 16 albums |
| Chris DeGarmo | 8 albums |
| Kelly Gray | 6 albums |
| Pamela Moore | 5 albums |
| Parker Lundgren | 4 albums |
| Mike Stone (Guitarist) | 4 albums |
| Randy Gane | 3 albums |
| Todd La Torre | 3 albums |
| Jason Ames | 2 albums |
| Jason Slater | 2 albums |
| Emily Tate | 2 albums |
| Miranda Tate | 2 albums |
| Evan Bautista | 1 album |
| Paul Bostaph | 1 album |
| Chris Cannella | 1 album |
| Ronnie James Dio | 1 album |
| Mitch Doran | 1 album |
| K.K. Downing | 1 album |
| A.J. Fratto | 1 album |
| Brad Gillis | 1 album |
| Ashif Hakik | 1 album |
| Martin Irigoyen | 1 album |
| Damon Johnson | 1 album |
| Neil Kernon | 1 album |
| Leopoldo Larsen | 1 album |
| Jon Levin | 1 album |
| Craig Locicero | 1 album |
| Matt Lucich | 1 album |
| Dave Meniketti | 1 album |
| Steve Nathan | 1 album |
| Nina Noir | 1 album |
| Chris Poland | 1 album |
| David Ragsdale | 1 album |
| Andrew Raiher | 1 album |
| Matt Rollings | 1 album |
| Robert Sarzo | 1 album |
| Rudy Sarzo | 1 album |
| Vincent Solano | 1 album |
| Ty Tabor | 1 album |
| Anthony Valentine | 1 album |
| Simon Wright | 1 album |