Before he was a vampire, Pattinson appeared as a wizard in 2005’s Harry Potter and the Goblet of Fire.
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Robert Pattinson - Now
Taking on the role of Edward Cullen in the film adaptation of Stephenie Meyer's hit book series, the actor, 23, plays the love interest of Kristen Stewart's Bella Swan.
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Kristen Stewart - Then
Stewart landed her first major film role playing Jodie Foster's diabetic daughter, Sarah, in the 2002 thriller Panic Room.
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Kristen Stewart - Now
Stewart, 19, is now a household name along with Pattinson, who calls the actress as a "good friend," though they've been long rumored to be dating. "What Rob and Kristen had is a multitude of feelings for each other," Twilight director Catherine Hardwicke has said.
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Taylor Lautner - Then
A trained martial artist, Lautner (here in a 2008 sophomore high school pic in Valencia, Calif.) competed in the 2003 U.S. Karate Open.
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Taylor Lautner - Now
Currently linked to Taylor Swift, Lautner, 17, gained 30 pounds for his beefed-up role as Jacob Black in New Moon.
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Kellan Lutz - Then
As a struggling actor, Lutz appeared on an eight-episode arc in Lisa Kudrow's short-lived 2005 HBO sitcom The Comeback.
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Kellan Lutz - Now
Turning down the chance to audition for the lead role in Twlight, the actor, 24, now portrays Pattinson's brother, Emmett Cullen, in the film franchise.
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Ashley Greene - Then
Once an aspiring model who was told her height of 5'4" was too short to afford her a career, Greene vied for title of Miss Wolfson at Samuel W. Wolfson High School in Jacksonville, Fla.
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Ashley Greene - Now
Greene, 22, moved to Los Angeles at age 17 to pursue an acting career before being cast in 2008 as psychic vampire Alice Cullen in Twlight, a role she reprises in the New Moon and Eclipse installments.
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Cam Gigandet - Then
Appearing in the third and fourth season of FOX's teen soap The O.C., Gigandet played Kevin Volchok, whose character was arrested for the manslaughter of Mischa Barton's character, Marissa Cooper.
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Cam Gigandet - Now
Dad to seven-month old daughter Everleigh, Gigandet, 27, stars in the film franchise as the leader of a nomadic pack of vampires who try to kill Bella in the first Twilight installment.
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Dakota Fanning - Then
Before her debut as Jane in New Moon, Fanning took on leading roles in 2005's War of the Worlds and 2003's Uptown Girls.
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Dakota Fanning - Now
The actress, 15, adopted a shocking gothic look for her New Moon role, one she will reprise in next year's Eclipse. "[Dakota] so angelic, yet so weird," Fanning's costar Michael Sheen has said. "As Jane that is, of course. Like an evil red riding hood."
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Elizabeth Reaser - Then
Former Grey's Anatomy mainstay Reaser was nominated for an Independent Spirit Award for her role in 2005's Sweet Land.
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Elizabeth Reaser - Now
Reaser, 34, appears in the Twilight franchise as Esme Cullen, a vampire who acts as a mother figure to the Cullens.
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Jackson Rathbone - Then
Prior to his role in Twilight, Rathbone appeared in two episodes of FOX's The O.C. in 2006.
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Jackson Rathbone - Now
Rathbone, 25, appears in New Moon as Jasper Hale, a vampire who has a calming influence on Bella, but once attacked her after she got a paper cut.
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Nikki Reed - Then
At age 14 Reed was living on her own with the money she earned from writing and starring in 2003's Thirteen, which was intended to be a comedy but drew critical ire for its drug and alcohol-related content.
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Nikki Reed - Now
Dating Paris Hilton's ex, Paris Latsis, Reed, 21, stars in New Moon as Rosalie Hale.
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Peter Facinelli - Then
Ten years before being cast as a vampire, Facinelli appeared in the teen comedy Can't Hardly Wait alongside Jennifer Love Hewitt, Seth Green and Breckiin Meyer.
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Peter Facinelli - Now
Married to 90210's Jennie Garth and the father of three daughters, Facinelli, 35, appears in New Moon as Dr. Carlisle Cullen, the adoptive father of Edward, Rosalie, Jasper and Emmett.
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Rachelle Lefevre - Then
The Canadian actress appeared in season one of TV's Life on a Stick in 2005, before being cast as the villainess Victoria in Twilight.
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Rachelle Lefevre - Now
Lefevre, 30, said she was "shocked" after being fired from Eclipse and replaced by Bryce Dallas Howard. She skipped the New Moon premiere this month because it was "too emotional."
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