"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 episode 12 of After Trek, Landry served as first officer under Captain Gabriel Lorca on the USS Buran.