|Seen||"The Annoying Red Planet"|
|Relationships||Henri Gaston (brother)|
Adrienne Gaston was a shop clerk who lived in Jerseyville.
After her brother's death, Gaston was interviewed by Detective William Murdoch. She told Murdoch that her brother's mind "troubled him" but that she never feared that he would commit suicide. She also helped Murdoch identify a French agent called Claude Benoit.