Mercenary captains are NPCs within Sanctuary who provide Hirelings and revive them after they have fallen in battle for a cost. Each act in Diablo II has its own mercenary captain:
| Act | Act I | Act II | Act III | Act IV | Act V |
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| Name | Kashya | Greiz | Asheara | Tyrael | Qual-Kehk |
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| Mercenaries | Rogue Archer | Desert Mercenary | Iron Wolf | (only revives dead Hirelings, does not provide new ones) | Barbarian Warrior |
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