"What... what's going on?"
"You've been rescued. Isn't that wonderful?"
- Trezin and Dr. Charnagus

Trezin was a male human who held the rank of captain

Captain Miscellaneous Ranks

in the Galactic

Galactic Republic Organization Galaxy-Wide Organizations

Republic Navy

Republic Navy Organization Galactic Republic (GGW, CW and GW)

during the Cold War

The Cold War Event Cold War (3653BBY - 3642BBY)

.
Shortly before the end of the war, the cruiser Coruscani Flame

Coruscani Flame Starship Named Starships

, to which he was assigned, was stationed in orbit above Nar Shaddaa

Nar Shaddaa Planet

. While on leave at Club Ufora in the Red Light sector, he was kidnapped

Shore Leave (prologue) Event Cold War (3653BBY - 3642BBY)

and taken to a hidden Imperial complex in the Quarantine Zone. The Imperials delivered him to Doctor

Doctor Miscellaneous Ranks

Charnagus

Charnagus (Rattataki) Character Minor Characters (TOR)

, who planned to transplant his face on a saboteur to take Trezin's place on the fleet.
However, Tresin was rescued

Double Negative Event Cold War (3653BBY - 3642BBY)

by a group of Republic operatives

Republic Operatives Organization Temporary Unions

before the Doctor could harm him. When the operatives decided to take Charnagus into custody, Tresin was the one who escorted him to his superiors.
He later contacted the operatives and informed them that Doctor Charnagus had been placed in prison and all Imperial saboteurs

Reconstitued Sith Empire Organization Galaxy-Wide Organizations

had been located and arrested before they could cause any harm.