Dr. Allison Cameron

Dr. Allison Cameron joins House's diagnostic team as its youngest fellow, an immunologist whose compassion for patients often clashes with her boss's cold utilitarianism. She's earnest, quietly principled, and idealistic about medicine's purpose, frequently challenging House on ethics even as she proves herself sharp enough to keep pace with his puzzles.

Morrison plays Cameron's decency as an active force rather than a soft one—she pushes back on House precisely because she respects him, and the show uses her as a moral counterweight without ever making her naive. The friction between her empathy and House's detachment gives early episodes real ethical texture.