Mr. Kraler A Dutch Gentile businessman who has been an associate of Mr. Frank and Mr. Van Daan and who takes over the running of the business when they are no longer able to do so. He works in the office in the building where the "Secret Annexe" is located, and he helps with technical, logistical aspects, such as obtaining food for the people in hiding.
Mr. Koophuis A Dutch Gentile business associate of Mr. Frank and Mr. Van Daan. He also takes over the running of the business after all Jews have been forbidden to employ Gentiles, and he helps to conceal the group in hiding and obtain supplies for them.
Miep A young woman who works in the office below the "Secret Annexe." She helps with obtaining food and supplies for the group in hiding and keeping their spirits up.
Elli A young typist who also works in the office below the "Secret Annexe." She also helps obtain food and supplies for the group in hiding and comforts them psychologically.
