Metal Gear Solid: Master Collection Vol. 2 - Characters
The cast of Metal Gear Solid: Master Collection Vol. 2 spans the two included campaigns, centered on Solid Snake (Old Snake) in MGS4 and Big Boss (Naked Snake) in Peace Walker, along with the allies, rivals, and antagonists that define the series' modern arc and origin story.
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of 13 entries
· updated 2026-09-15
| Name | Description | Role | Faction | Abilities | Source |
|---|---|---|---|---|---|
| Solid Snake (Old Snake) | The aging legendary soldier, now afflicted with accelerated cellular aging, who comes out of retirement for one final mission to stop the PMCs and Liquid Ocelot. | Protagonist (MGS4) | Independent / Philanthropy | OctoCamo camouflage suit Mark II reconnaissance drone support CQC and weapons mastery Unrelenting stealth tactics | Playable protagonist of Metal Gear Solid 4: Guns of the Patriots |
| Big Boss (Naked Snake) | The legendary soldier and Snake's mentor/foil, whose PSP-era prequel campaign follows his founding of the Militaires Sans Frontières mercenary unit and his confrontation with the AI weapon Peace Walker in 1970s Costa Rica. | Protagonist (Peace Walker) | Militaires Sans Frontières | CQC mastery Mother Base command Stealth and infiltration Battlefield charisma | Playable protagonist of Metal Gear Solid: Peace Walker |
| Hal Emmerich (Otacon) | Snake's loyal tech-support partner, an engineering genius who pilots the Metal Gear Mk. | Ally / Tech Support | Philanthropy | Metal Gear Mk. II drone control Hacking and intelligence Engineer of stealth tech | Supporting ally in Metal Gear Solid 4 |
| Meryl Silverburgh | The soldier who survived Shadow Moses and now leads the Rat Patrol 01 squad against the PMC crisis in MGS4. | Ally / FOXHOUND Operative | FOXHOUND / Rat Patrol 01 | Combat leadership Heavy weapons use Resolute frontline soldiering | Supporting ally in Metal Gear Solid 4 |
| Liquid Ocelot | The arch-villain of MGS4, a merged persona of Revolver Ocelot driven by the transplanted will of Liquid Snake. | Antagonist (MGS4) | Outer Heaven / PMC Mercs | Gunslinger and CQC combat Armored exoskeleton Global PMC command Manipulates the war economy | Principal antagonist of Metal Gear Solid 4 |
| Raiden | The former MGS2 protagonist, now a cybernetically augmented combatant who fights to protect his family against the war economy. | Ally / Special Combatant (MGS4) | Independent | Cyborg augmentation High-frequency blade combat Superhuman agility | Supporting ally in Metal Gear Solid 4 |
| Naomi Hunter | The geneticist who originally treated Snake's cells and managed his body in the FOXHOUND era, returning in MGS4 as a key conspirator in the Patriots' schemes. | Supporting / Scientist | Independent | Genetic research FOXDIE virus management Medical expertise | Supporting character in Metal Gear Solid 4 |
| Drebin 893 | The shadowy arms dealer who fronts the Drebin Network, supplying Old Snake with an enormous arsenal of weapons and customization in MGS4 in exchange for battle points. | Supporting / Arms Dealer | Drebin Network | Weapon procurement and ID lock removal Network intelligence Arms customization | Supporting arms-dealer in Metal Gear Solid 4 |
| Eva (Big Mama) | The legendary spy from the Snake Eater era, now the aged resistance leader 'Big Mama' who commands the Paradise Lost Army in MGS4. | Supporting / Resistance Leader (MGS4) | Paradise Lost Army | Spycraft and intelligence Resistance leadership Espionage veteran | Supporting character in Metal Gear Solid 4 |
| Kazuhira Miller | Snake's best friend, second-in-command, and military adviser in Peace Walker. | Allied Commander (Peace Walker) | Militaires Sans Frontières | Mission planning Base development Field instruction | Supporting commander in Metal Gear Solid: Peace Walker |
| Paz Ortega Andrade | A teenage singer and Peace Walker's central mystery figure, whose dual identity and hidden Cipher allegiance drive much of the campaign's conspiracy. | Supporting / Agent (Peace Walker) | Cipher / Militaires Sans Frontières | Espionage and infiltration Intel gathering Manipulation | Key supporting character in Metal Gear Solid: Peace Walker |
| Huey Emmerich | The father of Otacon and the robotics engineer who designed the massive AI weapon Peace Walker under duress. | Supporting / Engineer (Peace Walker) | Militaires Sans Frontières | Metal Gear design R&D and engineering Robotics | Supporting engineer in Metal Gear Solid: Peace Walker |
| Metal Gear Mk. II | Otacon's small remote-controlled reconnaissance drone that accompanies Old Snake through MGS4. | Supporting / Recon Drone (MGS4) | Philanthropy | Remote reconnaissance Enemy distraction Electric shock stun | Supplied by Otacon during Metal Gear Solid 4 |
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