Benson

Benson is angry and committed to the retaliatory logic that has sustained the Fris-Polo feud. He believes a life from the opposing family is an appropriate answer for a life already lost, regardless of the target's personal responsibility.

His anger is powerful but not absolute. When forced to confront the consequences of continuing the feud, Benson proves capable of listening rather than pursuing revenge at any cost.

Benson is an ordinary human with access to firearms and armed associates. He has no supernatural abilities or specialized combat techniques established by the anime.

His real leverage comes from the hostages taken by the Fris faction. Controlling innocent lives allows his side to force the Polo family into negotiations without defeating the family's entire organization.

Benson drives the central hostage conflict in "Hang Fire." The Fris faction seizes a satellite facility and demands that the Polo family surrender someone to answer for the death of one of their relatives.

Slader is available while most of the Polo family is away, making him the target. Vash the Stampede intervenes when the feud reaches the point of another killing.

Vash places himself between Benson and Slader and allows Benson to beat him rather than responding violently. His refusal to retaliate eventually persuades Benson to abandon the revenge killing and spare Slader.

The episode also places the local feud within the larger return of the Gung-Ho Guns. Leonof has been monitoring events through the puppet Lurald and reports Vash's movements afterward.

Slader Polo is the Polo family member Benson intends to kill in retaliation. Benson ultimately spares him after Vash intervenes.

Vash the Stampede stands between Benson and his intended victim, absorbing his anger while trying to end the cycle of retaliation.

Leonof the Puppet-Master observes the broader situation from a distance through his puppet.

Lurald appears around the New Oregon conflict. He is actually an artificial puppet controlled remotely by Leonof.