Joan Croydon (15 Mei 1908 – 23 April 1985) was 'n Amerikaanse aktrise. Sy was bekend vir haar rolle in die rolprent The Bad Seed (1956) en in die televisiereekse Hands of Mystery (1949), Armstrong Circle Theatre (1950), en The United States Steel Hour (1953). 1956: The Bad Seed 1949: Hands of Mystery 1950: Armstrong Circle Theatre 1953: The United States Steel Hour Joan Croydon in die Internet-rolprentdatabasis