In the Fifth Doctor story Resurrection of the Daleks, Davros (Terry Molloy) is released from his space station prison by a small Dalek force aided by human mercenaries and Dalek duplicates. The Daleks require Davros to find an antidote for a Movellan created virus that has all but wiped them out. Believing his creations to be treacherous, Davros begins using a syringe like mind control device hidden in a secret compartment in his wheelchair on Daleks and humans; he ultimately releases a...