Daniel's sister, introduced after a suicide attempt, whose presence in the story is mostly through Daniel’s memories of their shared childhood. Her involvement in the political movement and her tragic fate prompt Daniel to revisit their past.

Daniel's pragmatic mother who is deeply committed to the communist cause and views it with a practical, working-class perspective. Her experience and strong beliefs in revolution persist even through her imprisonment and execution.

Daniel's idealistic father who believes in communism as a means to achieve a fairer world, but whose hopes are crushed by his arrest and subsequent trial for espionage. His experiences in prison lead to a loss of his earlier optimism and vigor.