Mr. Fogg's character underwent a significant transformation throughout the course of the story. At the beginning, he was portrayed as a reserved and methodical man, who adhered strictly to his daily routine and showed little emotion. However, as he embarked on his journey around the world, his character began to evolve.

Throughout his travels, Mr. Fogg displayed a sense of adventure and spontaneity that was previously unseen in his character. He took risks, faced challenges head-on, and showed a willingness to adapt to unexpected circumstances. He also developed a deeper sense of compassion and empathy towards those he encountered on his journey.

By the end of the story, Mr. Fogg had transformed from a rigid and distant individual into a more open, caring, and adventurous person. His experiences had changed him for the better, allowing him to grow and evolve as a character.