Here are the news everyone has been waiting for! Official from Summit Entertainment, Theo James has been cast as Four in Divergent:

Santa Monica, CA  March 15, 2013 – Summit Entertainment, a LIONSGATE® (NYSE: LGF) company, announced today that Theo James (Downton Abbey, UNDERWORLD: AWAKENING) will star as “Four” opposite Golden Globe nominated Shailene Woodley (THE DESCENDANTS, THE SPECTACULAR NOW) in the highly anticipated feature film production DIVERGENT.  The futuristic action adventure, based on author Veronica Roth’s New York Times best seller, will be directed by Neil Burger (LIMITLESS, THE ILLUSIONIST) from a script by Vanessa Taylor and commences principal photography this April in Chicago.  The original draft of the script was written by Evan Daugherty.  Doug Wick and Lucy Fisher are producing the project via their Red Wagon Entertainment banner (THE GREAT GATSBY) along with Pouya Shahbazian. Red Wagon’s Rachel Shane is executive producing.  Summit will release the film theatrically in North America in THE HUNGER GAMES slot on Friday, March 21, 2014.

DIVERGENT is a thrilling adventure set in a future world where people are divided into distinct factions based on their personalities, Tris Prior (Woodley) is warned she is Divergent and will never fit into any one group. When she discovers a conspiracy to destroy all Divergents, she must find out what makes being Divergent so dangerous before it’s too late.

A man with a mysterious past, Four is Tris’s intense yet charismatic instructor and one of the leaders of the Dauntless faction.

In a joint statement, Rob Friedman and Patrick Wachsberger, Co-Chairmen of Lionsgate Motion Picture Group, said, “Theo is not only an incredibly talented actor, he is also who we envisioned as Four when reading Veronica’s novel which has taken the world by storm.  As we continue to develop the film, the studio remains committed to providing fans with a movie adaptation that stays as true to the book as possible and we are confident that we have done so with our selection of Shailene and Theo in the leading roles.”

“We took our time to find the right actor to fill the role of Four, and Theo is definitely the perfect fit,” said Erik Feig, Lionsgate Motion Picture Group’s President of Production.  “Veronica has crafted a truly iconic character in Four and we cannot wait to begin production and bring him and this story to life for millions of fans around the world.”

Here is the response from Veronica Roth from the Official Divergent Facebook:

 Recently I saw Theo James’ screen test with Shailene Woodley, and I was sure within seconds: this was ‘Four,’ no question. Theo is able to capture ‘Four’s’ authority and strength, as well as his depth and sensitivity. He is a perfect match for Shailene’s incredibly strong presence as Tris. I’m thrilled!
This is completely unexpected! What do you guys think? Theo James as four, Yes? No? Thoughts? We finally have our Four! Check out some pictures of him below: