Reginald Fessenden (1866-1932) received more than 500 patents, mostly related to radio and sonar. Among his accomplishments were the first transmission of speech over the radio in 1900, and the first two-way radiotelegraphic communication across the Atlantic Ocean in 1906.
The episode's title evokes a popular song of the 1980s. "Devil Inside", written by Andrew Farriss and Michael Hutchence and released as a single in 1988, is one of best known songs performed by the Australian band INXS. It reached #2 on the (U.S.) Billboard Hot 100, #6 in Australia, and #3 in Canada.
James Gillies was born on 14 July 1876, which happens to be the anniversary of the Storming of the Bastille (1789).