David Bickerstaff voiced Ral in Big Finish Doctor Who audio story Davros and reprised the role in I, Davros audio stories Corruption and Guilt. He also voiced Kyle in the Kaldor City audio story Occam's Razor, Manzerak in Death's Head and Hidden Persuaders and Voc 101 in Checkmate.
He appeared in several of the amateur stage plays produced for charity, and in the fan film of Power of the Daleks, and has provided the voices for several of the Doctor Who toys produced by Character Options.
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