A Suliban civilian held in a Tandaran internment camp in 2152 who deeply distrusted his new human cellmates before joining the breakout organised by Archer.
Sajen appears in the first-season Enterprise episode Detained. Like his friend Danik, he is an ordinary Suliban with no link to the Cabal, locked up by the Tandarans simply because of his species.
When Archer and Mayweather are placed in Detention Complex 26, Sajen is hostile. Years of imprisonment have left him bitter, and he suspects that the humans are informers or will bring punishment down on the inmates. He is particularly sharp with Mayweather.
Sajen is slowly won over as the humans share the prisoners' hardships and plan an escape. He takes part in the breakout, when Enterprise disables the camp defences and the detainees flee in their impounded ships.