First Principles (1979) WEA – WEA 58 060
- Backing Vocals – Rick Barcellona, Tony Carey
- Bass, Guitar, Backing Vocals – Johan Daansen
- Drums, Percussion – Hartmut Pfannmüller
- Engineer – Armin Bannach, Mike Ungefehr, Rick Barcellona
- Engineer [Assistant] – Nicky "Rock'n'Roll" Turner*
- Engineer, Mixed By – Nigel Jopson
- Keyboards, Vocals – Christian Kolonovits, Richard Schoenherz*
- Lacquer Cut By – H*
- Mastered By – Hartmut Pfannmüller, Peter Harenberg
- Performer, Arranged By – Einstein (7)
- Producer – Peter Hauke
Beware Of Germans (1981) X Records (7) – 6.24544 AP
- Drums, Percussion – Hartmut Pfannmüller
- Engineer [Assistant Engineer] – Geli Fleer*, Norm Graichen
- Engineer [Recording Engineer] – Andy Lunn, Armin Bannach, Joe Laux, Nigel Jopson
- Guitar Synthesizer, Guitar, Bass, Backing Vocals – Reinhard Besser
- Guitar, Bass, Backing Vocals – Johan Daansen
- Keyboards, Backing Vocals – Christian Kolonovits
- Lacquer Cut By – SST (8)
- Lead Vocals, Backing Band – David Thomas (50)
- Mixed By – Andy Lunn
- Producer – Peter Hauke