Jochen Horst seriously said in an interview the original name in the legend for this series was "Harald". Later the statement was given that the first name should never be mentioned. On an ID card which was shown in close-up, however, the name "Stefan" was readable. Reason: The designer and creator of the card neither didn't know the original name "Harald" nor that the first name shouldn't be named. Because he believed that the ID card never would be shown in close-up, he simply wrote the name "Stefan" in the appropriate field. That's the reason for his name "Stefan" in this database.