Sir Alec Guinness (1914-2000)

Arguably the most famous resident, Sir Alec lived in Steep for over 40 years. Wikipedia has a very comprehensive biography.

John Wyndham (1903-1969)

The pen name used by John Wyndham Parkes Lucas Beynon Harris who went to Bedales School for 3 years and lived in Mill Lane, Steep. Wikipedia has a very comprehensive biography.

Edward Thomas (1878-1917)

Poet Edward Thomas lived in Steep for a few years until his death during the first World War. He is commemmorated with a window in Steep Church and a stone memorial on Shoulder of Mutton Hill, part of the Hangers. The Edward Thomas Fellowship exists to remember and commemmorate his life and works of poetry.

Jill Balcon (1925-2009)

The second wife of poet Cecil Day-Lewis and mother of Daniel Day-Lewis was an accomplished actress in her own right. She lived in Steep for the last 30 years of her life. Wikipedia has a short biography.