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Memory Beta, non-canon Star Trek Wiki

The Emergency Security Gorn, or ESG Mark-1 for short, was a sophisticated holographic program used aboard Starfleet's first Emergency Medical Vessel in the latter part of the 24th century. The ESG Mark-1 was an Emergency Security Hologram based on the Gorn species. The Doctor, one of its developers, espoused that the ESG Mark-1 had proven to be a fierce hand-to-hand combatant during tests. Unlike the Gorn species, the ESG sported a tail, which the Mark-1 also utilized in combat. These holograms spoke flawless Federation Standard. (VOY novel: Unworthy)


The ESG Mark-1 was a variation of the Emergency Security Hologram developed by Doctor Lewis Zimmerman and the Doctor with the assistance of Lieutenant Reginald Barclay on Jupiter Station. The ESH was based on the success of the Emergency Medical Hologram programs. The ESH, including the ESG Mark-1, were subsequently tested on Jupiter Station before being assigned to the USS Galen, which also pioneered a number of other advanced holographic staff, including upgraded EMH staff and holographic engineers.

In May 2381, the Galen was assigned to Project Full Circle and, shortly in to the expedition the Doctor and Lieutenant Barclay suggested that the ESH's should be tested. When Clarissa Glenn, the ship's commander, questioned the necessity of this, they explained that the matrices used in creating the ESH's had been based on some of the more feared species that the Federation had encountered, including the Klingons and the Hirogen something which the non-holographic crew members would not be used to.

Following a scuffle in the holographic research lab, an ESG Mark-1 carried an injured Barclay to sickbay and reported how he and a Klingon ESH had found him there. The ESG's scans of the lieutenant suggested a mild concussion to the occipital lobe. The Doctor dismissed them when he commenced treatment. (VOY novel: Unworthy)

In 2382, all holographic systems aboard the Galen shut down when the ship suffered damage and became stranded in Edrehmaia space. The Full Circle fleet recovered the ship and helped repair its systems. (VOY novel: To Lose the Earth)



Emergency holographic programs
emergency holograms Command (ECH)Conn (ECH)Counseling (ECH)Engineering (EEH)Hospitality (EHH)Medical (EMH)Navigational (ENH)Tactical (ETH)Security (ESH)Security Gorn (ESG) Federation icon image. Starfleet icon image.
related technology Emergency Hologram basic installationEmergency Medical Android (EMA)Jupiter Station Diagnostic Program Alpha-11Long-term Medical Holographic program (LMH)
Photonic and holographic personnel
Emergency holographic programs positions Command (ECH)ConnCounselingEngineeringHospitality (EHH)Medical (EMH) (25th century EMH Mk I) • Navigational (ENH)R&D (Energy Weapons OfficerMatter-Antimatter SpecialistQuartermaster) • Security (ESH) (Security Gorn (ESG)) • Tactical (Holo Leeta) • Entertainment (OrionVulcan) • Hamlet programsholographic bridge officers (TOS • DS9 • others) • holographic Exocomps (holographic combat drone) • Long-term Medical (LMH)personal Karemma trader UFP emblem. Seal of the Federation Starfleet.
notable versions and variants Medical Android (EMA)EmmetEmmettHolo Leeta (Dabo LeetaMirror Admiral) • Diagnostic Program ("Dr. Zimmerman")The DoctorPhotonic Engineering Officer CandidatePhotonic Tactical Officer CandidateVic FontaineThe Warden
notable templates organic templates Lewis Zimmerman (EMH • Diagnostic) • Julian Bashir (LMH) • Leeta
synthetic templates ExocompsThe Doctor (25th century EMH Mk I) • Vic Fontaine (Counseling) UFP emblem. Seal of the Federation Starfleet.