Nollie’s son, one of Corrie’s oldest nephews, and her personal favorite. Peter is an exceptionally gifted musician as well as an impetuous idealist: the organist at his church, Peter breaks the law by playing the Dutch national anthem after it’s been outlawed by the Nazis. As a result, he’s briefly imprisoned by the Gestapo. Upon his release, he becomes an important member of Corrie’s operation, working as a “runner” to ferry supplies and news between different safe houses. Arrested at the same time as Corrie and his parents, he is eventually released and spends the rest of the war in Haarlem.