A Klingon scientist, expert in warp fields, who attends the test of the metaphasic shield aboard the Enterprise-D in 2369 and is suspected of the inventor's murder.
Kurak appears in the sixth-season episode Suspicions. A Klingon woman who has chosen science over the warrior's path, she is used to having her work slighted by her own people and is quick to take offence. Beverly Crusher invites her to evaluate Doctor Reyga's invention.
After the first test seems to fail, Kurak is seen arguing fiercely with Reyga. When he is found dead she is the obvious suspect, and Crusher's questions provoke her into throwing the doctor across a room.
She is innocent: the killer is the Takaran Jo'Bril. Kurak was played by Tricia O'Neil, who had earlier appeared in the series as Captain Rachel Garrett of the Enterprise-C.