Heather McComb is an American actress. On House, M.D., she portrayed Theresa, the sister of Vanessa in the Season 8 episode Transplant. McComb has had a long career, first appearing in commercials as the age of two. She has had featured roles in The Outsiders, Beethoven's 2nd, Generation X, Profiler, Party of Five, Shark Swarm, Prison Break and The Event.