I'm sorry, but I have no information regarding the author of this 'der fremde graphic novel'. It could be a relatively unknown work or from a new or independent creator.
Sadly, I can't tell you who the author of 'der fremde graphic novel' is. It might be a self - published work, or perhaps it's from a small - press publisher, which makes it harder to find information about the author.
I'm not sure specifically as I haven't read it. It could be about a variety of things. Maybe it's a story of an outsider ('der fremde' can mean 'the stranger' in German) in a unique world created in the graphic novel format.
Unfortunately, I have no information regarding the author of 'der trinker graphic novel'. It might be a niche or indie work, which makes it even more difficult to know the creator without proper research in relevant graphic novel communities or databases.
I don't know the main characters in 'der riss graphic novel' as I haven't read it.
I don't know the main characters in 'der talisman graphic novel' as I haven't read it. But they could be a young hero, a wise old mentor, and some villains who want the talisman for themselves.
Given that the title implies a story about an accident, the main characters could include those directly affected by the accident, such as an injured person and their family members. There may also be characters like the medical staff who treat the injured, or the investigators if the accident is of a more mysterious or complex nature. Without more information about the graphic novel, it's difficult to be certain about the exact main characters.
Since I don't know the details of this graphic novel, I can't say for sure. But it's likely that the Sandmann is one of the main characters. There may also be characters who interact with the Sandmann, like friends, foes, or people he is trying to help or protect.
As I'm not familiar with 'der unfall graphic novel', it's a mystery who the main characters are. But based on the title, one can assume that if it's about an accident, there might be characters like the people who experienced the accident first - hand. This could include someone who was injured in the accident and is now on a journey of recovery. There might also be family members or friends of those involved, who are dealing with the emotional and practical consequences of the accident. And, of course, there could be peripheral characters like the people who witnessed the accident and their actions or inactions might play a role in the story.
The author of van der valk novels is Nicolas Freeling.
If 'kafka der prozess graphic novel' is related to Kafka's 'The Trial', then Josef K. is the central figure. He is an ordinary man who becomes the victim of an incomprehensible and oppressive legal system. There could be other characters such as the guards who arrest him at the beginning, the lawyer who tries to defend him but seems just as lost in the system, and maybe some of his friends or family who react to his situation in different ways, either believing in his innocence or doubting him. These characters together would form the web of relationships and interactions that drive the story forward.
It could be aimed at fans of 'The Hobbit' who want a different way to experience the story. Maybe younger readers who are attracted to graphic novels would be a big part of the target audience.