Kitty Marion (Katherina Schafer) was born in Westphalia, Germany in 1871. Her mother died in 1873 and when she was fifteen went to live with her aunt in England. After learning English she adopted the name Kitty Marion and became an actress.
In 1889 she was engaged for the pantomime season in Glasgow. Over the next few years she became a star of the musical hall and she was billed as the "Refined Vocal Comedienne". In 1899 she appeared at the Prince of Wales Theatre in Liverpool, on the same bill as Vesta Tilley.
Marion took a keen interest in politics and in 1908 joined the Women's Social and Political Union (WSPU). She moved to Hartfield in East Sussex and was an active member of the WSPU branch in Brighton. In June she was arrested during a demonstration outside the House of Commons. She later recalled: "Two policemen, one on each arm, quite unnecessarily pinching and bruising the soft underarm, with the third often pushing at the back, would run us along and fling us, causing most women to be thrown to the ground."
Later that year Kitty Marion joined Elizabeth Robins in helping to form the Actresses' Franchise League. Other actresses who joined included Winifred Mayo, Sime Seruya, Edith Craig, Inez Bensusan, Ellen Terry, Lillah McCarthy, Sybil Thorndike, Vera Holme, Lena Ashwell, Christabel Marshall, Lily Langtry and Nina Boucicault.
Kitty Marion was a supporter of direct action and in 1909 she was arrested and found guilty of throwing stones at a post office in Newcastle. She was sentenced to a month's imprisonment, went on hunger strike, and was forcibly fed. This resulted in her set fire to her cell. In October she joined forces with Constance Lytton,