Jack Coulson was an energy scientist. In January 2025, he led protests outside the GlobeSphere Corporation. He was surprised that his old friend Damien Stephens was running it and had come up with so many innovations, as he had been a radical and not strongly interested in science when they were in school together. Coulson helped the Fourth Doctor and Leela stop the Daleks from using the Corporation's resources to destroy the Earth. (AUDIO: Energy of the Daleks)

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