In The Lord of the Rings: The Fellowship of the Ring, which one of the following characters from the book was left out of the film?

In the film adaptation of "The Lord of the Rings: The Fellowship of the Ring," the character left out from the book is Tom Bombadil. This exclusion can be attributed to various reasons. While Tom Bombadil adds a sense of mystery and folklore to the book, his presence does not significantly contribute to the overall narrative and themes of the film. The filmmakers likely decided to focus on the central plot and characters, streamlining the story to make it more accessible to a wider audience, while also preserving the pacing and flow of the cinematic adaptation.