Tembit was a female Mari living on the Mari homeworld.

She illegally acquired violent thoughts, stolen from B'Elanna Torres, from Guill in 2374. When her usual vendor Talli accidentally dropped a fruit, Tembit flew into a rage and murdered Talli with a knife. Later, she could not explain or remember why she had killed Talli and was taken into custody. (VOY: "Random Thoughts")

Tembit was played by actress Jeanette Miller and was credited as "Woman" in the end credits.
The call sheet listed her as "Elderly Woman" and Miller filmed her scene on Thursday 4 September 1997 on Paramount Stage 16.