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Half-Life / Characters

Half-Life characters: cast, factions and story roles

Identify the key people and factions in Half-Life, their roles and the relationships that matter during the campaign.

Edition covered

The original GoldSrc Half-Life campaign on PC, first released in 1998. Valve Steam screenshots show original game assets. Half-Life: Source, Black Mesa and the expansion campaigns are separate games.

6 characters · one picture per entry · open a picture for full size.

Characters

Gordon Freeman in Half-Life
Playable scientist

Gordon Freeman

A Black Mesa researcher wearing an HEV suit when the experiment causes the resonance cascade.

Reference

G-Man in Half-Life
Mysterious observer

G-Man

A suited figure seen watching Gordon; his purpose becomes more direct after the final battle.

Reference

HECU marines in Half-Life
Military enemies

HECU marines

Human opponents use gunfire, cover and grenades throughout the facility.

Reference

Nihilanth in Half-Life
Final boss

Nihilanth

The powerful Xen entity encountered at the end of Gordon’s journey.

Reference

Quick notes

  • Know who Gordon can work with. Gordon is a scientist forced into combat, and the surviving Black Mesa staff are more than background scenery.
  • Separate allies, invaders and the military. The resonance cascade brings Xen creatures into Black Mesa, while the HECU arrives as a hostile human force.
  • Watch the G-Man without expecting an explanation. The G-Man appears behind glass, on distant walkways and in other inaccessible positions.
  • Keep sequel identities out of the first campaign. Many original scientists and guards use repeated models and generic roles.

Separate allies, invaders and the military

Relationships and campaign context
SubjectConnectionWhy it matters
ScientistsBlack Mesa research staffUseful guides through locked facility routes
Security guardsBlack Mesa protection staffCan provide armed support
HECUMilitary force opposing GordonHuman tactics differ from alien attacks
Xen creaturesInvaders after the experimentEnemy types have different attacks
G-ManObserver of Gordon’s progressConnects the journey to the closing scene
Useful tip

Many original scientists and guards use repeated models and generic roles.

References
Guide references
ReferenceWebsite
Half-Life — publisher listingstore.steampowered.com
StrategyWiki: campaign chaptersstrategywiki.org
StrategyWiki: weaponsstrategywiki.org
StrategyWiki: final bossstrategywiki.org
Half-Life manualwww.sierrachest.com