She's best known for her role as bubbly blonde Dawn Tinsley in The Office.

But Lucy Davis looked almost unrecognisable when she stepped out on the set of Warner Brothers' Wonder Woman on Sunday.

The British actress, 43, swapped her golden tresses for a wild and wavy ginger look, cut into an unruly bob.

Transformed: Lucy Davis, 43, looked almost unrecognisable when she stepped out on the set of Warner Brothers' Wonder Woman on Sunday

Vintage: In keeping with the fashion of the time, Lucy covered up in checked coat worn over a burnt orange jacket

During her time in front of the camera, Lucy wore a scowl on her face and looked more portly than in previous roles.

Roads in central London were closed for five hours while the elaborate scene was filmed in Trafalgar Square.

Scores of actors and extras flooded the famous location which was transformed into a celebratory scene to mark the First World War armistice.

Unrecognisable: Lucy's transformation for the role in the blockbuster highlights her dedication to her craft

Seething: During her time in front of the camera, Lucy wore a scowl on her face and looked more portly than in previous roles

Wrapped up: There was certainly no danger of the actress getting cold with a brown silk cravat and a striped shirt adding additional items to her outfit

In keeping with the fashion of the time, Lucy covered up in checked coat worn over a burnt orange jacket.

There was certainly no danger of the actress getting cold with a brown silk cravat and a striped shirt adding additional items to her outfit.

Many vintage military uniforms could be seen, and there was a patriotic feeling in the air with red, white and blue bunting hung around the square and Union Jacks being passionately waved.

Assessing the scene: Leading lady Gal Gadot, 30, was at the heart of the action in a navy overcoat and maroon blouse

Having a laugh: While she may have looked stern in character, Lucy let her guard down once the cameras stopped rolling and shared a joke with Gal

Standing out from the crowd: Gal and Lucy made their way through the bustling square

Taking it all in: Gal gazed over the elaborate set up with a big smile on her face

Leading lady Gal Gadot, 30, was at the heart of the action in a navy overcoat and maroon blouse.

The brunette beauty had a look of determination on her face, possibly assessing the scene for danger.

While she may have looked stern in character, Lucy let her guard down once the cameras stopped rolling and shared a joke with Gal.

In the navy: The Israeli beauty looked sophisticated in a fitted coat and leather gloves

Rule, Britannia!: Many vintage military uniforms could be seen, and there was a patriotic feeling in the air with red, white and blue bunting hung around the square and Union Jacks being passionately waved

Deep in thought: A focused Lucy kept her head down as she walked through the crowd

Going back in time: Scores of actors and extras flooded the famous location which was transformed into a celebratory scene to mark the First World War armistice

Wonder Woman isn't set to hit cinemas until next year. The film will be based around the origins of the character as many aren't as familiar with her beginnings in comparison to Batman or Superman.

Created in 1941, Wonder Woman is an Amazonian princess gifted with a wide range of superhuman powers and battle skills.

As is typical in the comic book world, the character is a force for good and has faced a vast array of super-villains.

Fans have already had their appetites whetted by the character's appearance in the trailer for Superman vs Batman, which will be released later this year.

Other cast members in the highly-secretive blockbuster include Robin Wright, Harry Potter's David Thewlis, Danny Huston, Trainspotting star Ewan Bremner as well as indie-darling Lena Anaya and Office star Lucy Davis.

Shutdown: Roads in central London were closed for five hours while the elaborate scene was filmed in Trafalgar Square