Armstrong was a 21st century Human who worked as security guard in 2024.
In April, 2024, she worked at the Europa Mission pre-launch gala, watching over the guests on security cameras in the surveillance room. She was knocked over with anesthesia gas by Agnes Jurati, who had been detained for trespassing at the gala. (PIC: "Fly Me to the Moon", "Two of One")
Armstrong was played by Michelle Haro.
While her name was not stated in dialogue or credits, it can be read on the name tag on her tuxedo.