"Vulcans should stick to logic."
Commander Ellen Landry was a female Human Starfleet officer who lived during the mid-23rd century. She served as the chief of security aboard the USS Discovery in 2256. (DIS: "Context Is for Kings")
Landry was killed by an alien tardigrade she named "Ripper" when she attempted to sedate it. (DIS: "The Butcher's Knife Cares Not for the Lamb's Cry")
Ellen Landry was played by Rekha Sharma.
According to Ted Sullivan on After Trek: "Episode 12", Landry served as first officer under Captain Gabriel Lorca on the USS Buran.