Nan Munro was born on June 24, 1905 in Piet Potgietersrust, South Africa as Anne Mackay Munro. She was an actress, producer and professional director.

She had three children with her first husband William Gau: Donald, John and Angela.

She produced "French Without Tears" in 1942.

In 1944 she and Margaret Inglis founded their own theatre company, the Munro-Inglis Company. She starred in several of their productions, e.g. "Full House" (1943 and 1945), "French Leave" (1943), "My Sister Eileen" (1944), and "Ladies in Retirement" (1946).

Her husband Gau died in 1945.

On October 1946, she starred as Eliza in "Pygmalion", also starring writer Rayne Kruger. The two principals fell in love. They sailed for England with Munro's three children, and were married the following year in London. Munro resumed her West End career.

Apart from a number of stage productions, she worked mainly in television in Britain. In 1965 she had a role in the BBC transmitted filmed version of the play "Try for White".

She starred in Margaret Inglis's production of "The Importance of Being Earnest" for NAPAC in Durban post 1962 and in "The Lady's not for Burning" (NAPAC, 1970s).

In 1973 Rayne left her. He had been having a secret affair with Inglis's daughter, Prue Leith, for 13 years.