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In which sci-fi series did Bradley Walsh play Graham O'Brien?

  • Star Trek

  • Doctor Who

  • Black Mirror

  • The Expanse

Answer

Bradley Walsh played Graham O'Brien in the sci-fi series Doctor Who. Graham O'Brien is a companion of the Doctor, a time traveler who travels the universe in his TARDIS. Graham is a widower and former police officer. He is joined by Yasmin Khan and Ryan Sinclair as companions of the Doctor.
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