Harold Arundel Moody was a Jamaican-born physician and one of Britain’s most influential early civil rights activists. After facing racial discrimination that barred him from hospital work, he established a medical practice in South London and turned his experiences into organised resistance. In 1931, he founded the League of Coloured Peoples, campaigning against racism in employment, housing, education, and immigration law. Moody worked tirelessly to challenge colonial injustice and support Black and Asian communities in Britain. Despite his impact, his contributions have been marginalised in British history. Remembering Moody exposes how racial justice movements have long shaped Britain’s social and political life.