Assistant to Professor Whitaker and member of the Operation Golden Age group. Butler helped the professor with his experiments to roll back time. Prehistoric creatures were brought forward to 20th Century London in order to force the evacuation of the city. This would allow the group to proceed with their plans unhindered. A number of people had been duped into thinking they were going to travel through space to a new planet, free of pollution, when in fact they would be emerging onto an Earth sent back to a pre-industrial age. Butler also posed as chauffeur to the politician Sir Charles Grover, supposedly remaining in London to co-ordinate with the government in exile but really the mastermind behind the whole scheme. They were operating out of a bunker constructed beneath the city. Butler was arrested by UNIT when they stormed the complex.
Played by: Martin Jarvis. Appearances: Invasion of the Dinosaurs (1974).
- Middle of three appearances in the programme for Jarvis, having previously played the Menoptra Hilio in The Web Planet. He would later play the Governor in Vengeance on Varos. It's about time they had him in the current series.
- In the Target novelisation, Malcolm Hulke fleshes out the character of Butler. He has a scar on his face, which he got when saving a child when he used to be a fireman.