Tumak was a young Skrreean male and the son of Haneek. They were among a large group of Skrreean refugees who arrived at Deep Space 9 in 2370.

Tumak was a belligerent and ill-tempered young man. He attacked Nog after the young Ferengi sprayed a foul-smelling vapor on him as a joke.

After the Bajoran Provisional Government denied the Skrreeans' request to establish a settlement on Bajor, Tumak commandeered a small Skrreean ship and attempted to land on Bajor. When he was intercepted by Bajoran patrol craft, Tumak fired on them and fled. The Bajoran craft returned fire before being ordered to stand down by General Hazar. Unfortunately, a shot from one of the Bajorans, while not hitting Tumak's ship directly, ignited a radiation leak and destroyed it, killing Tumak. (DS9: "Sanctuary")

Tumak was played by actor Andrew Koenig, son of Walter Koenig and Judy Levitt.
Frederick Rappaport originally named the character Turok after the comic book series. Rappaport used Tumak instead after the character in One Million B.C..
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