Sebastian Caine is a fictional character from the 2000 science fiction film, Hollow Man. He is portrayed as a brilliant but morally ambiguous scientist specializing in invisibility research. Caine's groundbreaking work leads him to discover a method to make himself invisible, but this transformation comes with unforeseen consequences. As the story unfolds, Caine's character becomes increasingly unstable and dangerous, showcasing the darker side of scientific ambition. His descent into madness raises ethical questions about the responsibilities of scientists and the potential dangers of unchecked experimentation.