T'rook was a Catian enlisted navigator serving in Starfleet during the 24th century.

By 2370 he was the Leading Chief Petty Officer of Flight Deck Operations aboard the USS Thunderchild.

In 2371 he transferred aboard the USS Lionheart as Chief of Flight Operations. ("Shakedown Cruise")

He piloted the shuttlepod Sarkhova during maintenance on the Tarellian System's warning buoys. ("Homecoming")

On stardate 48 . , he piloted the shuttle Yellowjacket, carrying important information about the derilect Romulan warbird Sha'arik to the USS Caspain.  ("Marie Celestial")

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