One member of the Doctor Who family has replaced another in director Guillermo del Toro's new U.S. Tv drama The Strain.

David Bradley, who recently portrayed William Hartnell - Tv's first Doctor - in An Adventure in Space and Time, has signed up to play Professor Abraham Setrakian in the upcoming series after John Hurt, who is currently playing the War Doctor in the sci-fi franchise stepped down.

Bradley's new Tv character is an enigmatic Holocaust survivor, who is called upon to help disease experts contain the outbreak of a mysterious viral outbreak in New York City.

The Strain, which is scheduled to hit U.S. Tv screens next summer (14), will also feature Mia Maestro, Sean Astin and Corey Stoll.