Herr Herzog (Mr. Herzog) appears to be the CEO and president of Madrigal Electromotive GmbH. He is the grandson of Madrigal's founder.

Herzog only appears once, with his board in conference with the DEA, assuring them their cooperation in the investigation of Gustavo Fring and Peter Schuler.("Madrigal")

Herzog may be his surname or a honorary title, as this word is German for duke, his first name is unknown. He may be a reference to actor and producer Werner Herzog.