5. Rachelle Lefevre
Photo: Anthony Citrano
Canadian actress Rachelle Lefevre has had many roles in major TV shows and movies like Boston Legal, Swing Town and the Twilight Saga, among others. The success that she’s had with these roles hasn’t translated to anything bigger, though. While her acting in Under the Dome, her most recent role, was praised, the miniseries itself sank without trace.