Who played Allison Cameron on House M.D.?

Jennifer Morrison played Allison Cameron on House M.D.

Cameron is an immunologist and one of the original members of House's diagnostic team. Her empathy and ethical concerns often contrast with House's skepticism, especially when the team debates how aggressively to test or treat a patient.

Morrison remained a major cast member during the show's early seasons and later returned in a recurring capacity. Cameron is sometimes confused with Lisa Cuddy, played by Lisa Edelstein, because both characters challenge House and occupy influential roles at the hospital. Morrison's later television work included Once Upon a Time, where she played Emma Swan.