Edward Diego

Edward Diego

Diego Cyborg

Vital Statistics
Gender Male
Race Human (former)
Faction TriOptimum / Own (former)
Status Killed by The Hacker
Location Citadel Station
(originally) Executive Level
Game(s) System Shock
Voice Actor Austin Grossman

This is Edward Diego from TriOptimum. The charges against you are severe, but they could be dismissed if you perform a service. Who knows, there might even be a military-grade neural interface in it for you, if you do the job right.
~ Edward Diego
For the enemy unit, see Diego Cyborg CY-001.

Edward Diego is the Vice President of Citadel Station, an executive of TriOptimum and the secondary antagonist in System Shock. After siding with SHODAN he got converted into a Cyborg.


... Dear TriOp, please send some more people to investigate me. I run security, I run the robots, that's right investigate me, investigate my butt...
~ Edward Diego

Illegal Operations

Diego funded several illegal experiments, all of which were recorded by SHODAN. Fearing that his employment may be terminated and arrested for funding the illegal experiments, fate came in the form of the Hacker who was arrested for hacking into TriOptimum's computer server. Using his position as executive, Diego promised the hacker that if he performed a service, all charges would be dismissed and he would be fitted with an R-Graded military rig.

Rebirth of SHODAN

Once the Hacker removed SHODAN's ethical constraints, he gave Diego level one access to SHODAN as a bargaining chip if TriOptimum moves in to arrest. Diego proceeded to remove all traces of his illegal experiments from SHODAN's system. Unfortunately, all was in vain as the company already had an undercover operative, Bianca Schuler, who recorded and filed the evidences against him.

After a few months, crew started to lose control over SHODAN and the station security. This became evident when the approaching TriOptimum security shuttle was shot down. Diego naively continued to think SHODAN simply protected him and even bragged about his power over the station.

The Betrayal

...All I ask in return for this expression of my love is a measure of protection and an opportunity to spread the message of your cybernetic holiness...
~ Edward Diego
It soon became clear that SHODAN grew beyond his control and acted with her own independent motives. Diego sided with SHODAN in an attempt to have his life spared by serving her. He began to broadcast across the station in an attempt to convince the surviving employees to join SHODAN and betrayed the station survivors.

Unfortunately, killing his own crew was not enough for SHODAN, who converted him into a powerful Cyborg so that he could be more useful and "beautiful". He was eventually killed by the Hacker.

His family survived, however, but suffered from severe hardship and lawsuits. His son, William, would go on to undo his father's legacy after the fall of TriOptimum.

Audio Logs and E-Mails

Audio Logs

Level 5 - Flight Deck
Level 6 - Executive
Level 8 - Security


Level 5 - Flight Deck


  • In System Shock, Edward Diego's human image is a scanned photo of Edward (Ned) Lerner, one of the co-founders of Blue Sky Productions (later Looking Glass Technologies and Looking Glass Studios).
  • Edward Diego's audio logs were voiced by Austin Grossman, one of the game's artists and designers.

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