Rachelle Marie Lefèvre (/ləˈfɛv/ lə-FEV, French: [ʁaʃɛl maʁi ləfɛvʁ]; born February 1, 1979) is a Canadian actress.

[8] She studied theater for two summers at the Walnut Hill School in Natick, Massachusetts, and began a degree in education and literature at McGill University.

[9] While working as a waitress at a sushi bar in Westmount a regular customer, a Canadian television producer, overheard Lefevre telling the hostess that she wanted to be an actress.

[11] She didn't land the part but got a call back from the casting director, leading to a role in the Canadian TV series Big Wolf on Campus in 1999, playing Stacey Hanson.

She appeared in the television movies Picking Up and Dropping Off with Scott Wolf, and See Jane Date, and had a role in the romantic comedy Hatley High in 2003.

Lefevre was cast as Annie Cartwright, the female lead in ABC's Life on Mars, a David E. Kelley remake of the original British TV series.

[15] Lefevre spent hours working on the costumes for her character, and described herself as "obsessed" with vampires after reading Bram Stoker's Dracula at the age of 14.

[22] Lefevre responded that she was "stunned" by the decision and "greatly saddened" not to continue her portrayal of Victoria, and never thought she would "lose the role over a 10 day overlap", in a statement to Access Hollywood.

[23] The studio responded in a counter-statement, "The Twilight Saga: Eclipse is an ensemble production that has to accommodate the schedules of numerous actors while respecting the established creative vision of the filmmaker and most importantly the story.

[25] Enthusiastic fans of the series reacted to the news of Lefevre's replacement with online petitions urging her return, and "Bring Back Rachelle" became a top-trending topic on Twitter on the afternoon of July 29, 2009.

Lefevre plays Clara, a manic depressive feminist poet who becomes the first wife of protagonist Barney Panofsky (Paul Giamatti).

[29] Soon after the shoot, in November 2009, Lefevre shot the suspense film The Caller in Puerto Rico along with actors Lorna Raver and Stephen Moyer.

[32] She starred in the drama series Off the Map as Dr. Ryan Clark, a young doctor working in a South American medical clinic.

[33] Developed by Grey's Anatomy creator Shonda Rhimes, the series was filmed in Hawaii, debuted on January 12, 2011 and ran for 13 episodes before being canceled.

In 2017, Lefevre joined the cast of Global's critically acclaimed original TV series, Mary Kills People for Season 2, premiering in January 2018.