| Artist name | Roles | Recordings |
|---|---|---|
| Robt Ptak (Robert Ptak) | vocal, drums, electric bass guitar, electric guitar | Evil Twin, Grapes Of Wrath, Pain In My Head |
| Artist name | Roles | Recordings |
|---|---|---|
| Robt Ptak (Robert Ptak) | vocal, drums, electric bass guitar, electric guitar | Evil Twin, Grapes Of Wrath, Pain In My Head |
| Artist name | Roles | Recordings |
|---|---|---|
| Robt Ptak (Robert Ptak) | vocal, drums, electric bass guitar, electric guitar | Evil Twin, Grapes Of Wrath, Pain In My Head |