'Crash' star joins 'Torchwood' cast

Arlene Tur is to join the cast of the upcoming fourth series of Torchwood in a recurring role.

Deadline reports that the actress will play surgeon Vera Juarez, a new character first announced late last month.

Tur previously played police officer Bebe Arcel on Starz drama Crash and has also made guest appearances on Lie to Me and Grey's Anatomy.

It was also reported in October that One Tree Hill veteran Chad Michael Murray and Dollhouse star Enver Gjokaj were being considered for the regular role of CIA agent Rex Matheson, but both actors are no longer believed to be in the running.

James Wolk, lead actor in Fox's recently axed drama Lone Star, is also said to have turned down the part of Rex.

Torchwood: The New World is expected to air on Starz in the US and on BBC One in the UK next summer.