Definitely not. John Diggle and Green Lantern are distinct entities in the comics. Green Lantern has specific powers, origins, and adventures that are separate from those of John Diggle.
In some comic storylines, Andy Diggle and John Diggle are related. But it varies based on the creative direction and the specific context of the comic series. It's not a consistent relationship across all comics.
Sure, John Diggle is in the comics. He's often involved in action-packed scenarios and has connections with various characters. Sometimes his comic version has different developments compared to adaptations.
I'm not sure if there is a specific fanfic directly related to 'bald John Green' and 'other John Green'. There are a vast number of John Green fanfics out there, but this combination seems rather specific. It might exist in some corner of the fanfic world, but it would take some in - depth searching through fanfic platforms to find out.
Yes, it can be. It often gives enough background within the story so that new readers can follow along. They'll quickly get a sense of who Green Arrow is and what he stands for.
A fanfic like this might start with an interesting premise. For example, the 'bald John Green' is a character who has lost his hair due to some sort of stress related to his writing process. The 'other John Green' could be a more carefree and adventurous version. The story could revolve around how they meet and how the 'bald John Green' is inspired by the 'other John Green' to regain his creativity and confidence. It could also delve into themes from John Green's actual works, like self - discovery and the power of relationships.