A reticent and enigmatic character, whose past as a former Nazi and relationship with Michael reveal layered truths. Her secretive nature and complex motivations drive much of the plot's tension.

A philosophy professor whose distant relationship with Michael contributes to the theme of emotional numbness. His presence in Michael's life influences his son's philosophical perspective.

Michael's ex-wife, with whom he shares a child. Their relationship lacks depth, underscoring Michael's inability to form long-lasting emotional connections.

The daughter of Michael and Gertrud, who is seldom discussed in detail within the narrative. She represents part of Michael's life that remains in the periphery.

A survivor of the church burning who testifies in court and represents the voice of Holocaust survivors. Her presence offers a blunt perspective on justice and morality.