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
Name Kashya Greiz Asheara Tyrael Qual-Kehk
Captain image Kashya Greiz Asheara Tyrael Qual-Kehk
Mercenaries Rogue Archer Desert Mercenary Iron Wolf (only revives dead Hirelings, does not provide new ones) Barbarian Warrior
Mercenary image Flavie Kaelan Ironwolf None Barbhireable
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