Judith Grimes in the graphic novel is special because she represents hope in a desolate world. Despite the numerous challenges and threats she faces, she continues to strive forward. Her story arc might involve her coming into her own, learning to fight, and making important decisions for the group she is a part of, which all contribute to making her a unique and engaging character.
Well, there may be antagonists as well who are associated with Judith Grimes in the graphic novel. These characters could pose threats to her and her group, which in turn would force Judith to grow and adapt. Her interactions with both positive and negative characters around her shape her character and the overall story.
Judith in the Judith Bible story is a heroic and devout widow. She was a woman of great courage and faith. She played a crucial role in saving her people from the Assyrian threat.
I don't have enough information to determine exactly who Judith Kay is. She could be an ordinary woman who gets caught up in an extraordinary situation involving the mirror.
A common theme is survival. In these fanfictions, Carl and Rick are often shown using their skills and bond to survive in the harsh post - apocalyptic world. For example, in many stories, they rely on each other's shooting abilities and knowledge of the terrain.