There are other characters like Felix Leiter who is Bond's ally from the CIA. His presence shows the international cooperation aspect in the fight against the villains. M, Bond's boss, also plays an important role. He gives Bond his missions and offers guidance and support, while also representing the authority of the British intelligence agency in the story.
James Bond is an important character. He is the main protagonist, known for his charm, intelligence and skills in combat and espionage.
Emilio Largo is a key figure in the 'thunderball novel'. He is a villain, a powerful and menacing adversary for Bond. He has his own devious plans and is a master of manipulation. Domino is also important. She is involved with Largo in some way and also has a connection with Bond. Her character adds an element of mystery and allure to the story.
One of the main themes is espionage. The story is filled with secret agents and their complex operations. Another theme could be adventure as the characters are constantly in dangerous and exciting situations.
As far as I know, Thunderball didn't impersonate Electro. Comics usually have distinct character arcs and storylines for each character, and this particular situation doesn't seem to be a part of it.
In 'Heidi the novel', Heidi is the key character. She is a young girl with a pure heart and a love for nature. Her grandfather, who initially seems a bit of a recluse but has a warm heart deep down. Peter, he's the boy who takes care of the goats and is Heidi's playmate. He has his own simple charm. Clara is another significant character. She is a frail, wealthy girl from the city. When Heidi goes to the city to be her companion, their lives become intertwined. The interactions between these characters drive the story forward and show different aspects of human nature and life in different settings.
There is usually the archaeologist. They are important as they are the ones who often discover the mummy and start the whole chain of events. Another important character could be the mummy itself, as it is the central focus of the story.
Arthur Holmwood is significant. He is Lucy's fiancé and is deeply involved in the attempts to save her from Dracula. Quincey Morris is also important. He is an American and brings a different perspective to the group of characters. His loyalty and courage are important in the fight against Dracula.
Encolpius is an important character. He is the narrator and main protagonist, through whose eyes we see the strange and chaotic world of the story.
Obviously, the seven sisters are the most important characters. Each of them has their own personality, dreams, and goals.
Bryon is an important character. He is one of the central figures through which we see the story unfold. His experiences and growth form a large part of the narrative.
Dorothea Brooke is an important character. She is a young, idealistic woman who is searching for a more meaningful life. Then there's Tertius Lydgate, a doctor with great ambition. His experiences in Middlemarch show the challenges of trying to bring new ideas to a traditional town. Also, Mr. Casaubon is significant. He is Dorothea's much - older husband, and their relationship is complex and full of misunderstandings.
Spartacus is of course the most important character. He was the leader of the slave revolt, a brave and determined man.