Originally from New Zealand, Lawrence 'Larry' Paterson has toured and recorded as a heavy metal drummer and worked as a scuba diving instructor, from which his first book, First U-Boat Flotilla, stemmed. His books have since branched out to cover other areas of the Kriegsmarine and also formations such as the Brandenburger special forces, Luftwaffe maritime strike units and the Hermann Göring Division. He lives in Italy.

Renato Dalmaso is a Brazilian historical artist, based in São Paulo.