An experienced border guard and sergeant. He acts as Schäfer's right-hand man, embodying the weary yet professional mindset of the long-serving military personnel.
Kummer holds a higher rank and issues strategic directives to Schäfer during the crisis.
Rotermund questions Kummer's rigid orders, creating tension over how to handle the escalating crowd.
Kummer exercises top-down authority, issuing strict containment orders to Arndt and other guards.
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