| Musician | Appearances |
|---|---|
| Randy George | 2 albums |
| Eric Gillette | 2 albums |
| Bill Hubauer | 2 albums |
| Neal Morse | 2 albums |
| Mike Portnoy | 2 albums |
| Bruce Babad | 1 album |
| Dave Buzard | 1 album |
| Chris Carmichael | 1 album |
| Eric Darken | 1 album |
| Steve Herman | 1 album |
| Jim Hoke | 1 album |
| Sarah Hubauer | 1 album |
| Alfreda McCrary | 1 album |
| Ann McCrary | 1 album |
| Regina McCrary | 1 album |
| Spencer McKee | 1 album |
| Rich Mouser | 1 album |