Who are the main characters in the 'dead boy detectives novel'?

Since it's about dead boy detectives, the main characters are likely those dead boys themselves. But without reading it, I can't give you specific names.

Some fanfictions might introduce new supernatural characters. Maybe a ghostly dog that has some special connection to the Detectives or a spirit guide who helps them in their investigations. These additional characters add more depth and variety to the Dead Boy Detectives fanfiction stories.

The main characters are the two dead boy detectives themselves.

The main characters would be the dead boy detectives themselves. Since it's their love story, they are central to it.

I don't know for sure as I haven't read it, but perhaps there are boys named Tom, Dick, and Harry.

Definitely! Dead Boy Detectives is a comic. It offers an interesting and engaging world for readers to explore with its distinct art style and plot developments.

The novel may revolve around the dead boy detectives' exploration of the boundaries between life and death. They could be on a quest to understand the rules of the afterlife and how it all works. It might also involve them encountering various otherworldly creatures and beings, and using their unique perspective as dead boys to solve problems that the living can't. There could be a strong theme of mystery and discovery, as they peel back the layers of the afterlife's secrets.

Not really. Their orientation isn't explicitly stated as gay in the comics.

Since it's a detective novel from 1929, there could be a lead detective who is smart and observant. There might also be his sidekick, who provides some comical relief or different insights. And there could be the villains, who are trying to outwit the detectives and carry out their evil plans.

It's about detectives who are dead boys. They probably solve mysteries in the afterlife or something related to the supernatural world. That's a common theme in such stories.