Sophie Pagay took children's parts at the age of seven at the Stadttheater, Brünn, where she also filled her first engagement after reaching maturity. She then appeared successively at Reval, Kiel, Görlitz, Breslau, Augsburg, and Hanover. In 1887 she went to Berlin, where she was connected with the Residenztheater until 1896, and then with the Lessingtheater until 1899. In that year she joined the company at the Königliche Hoftheater, where she plays chiefly old ladies' roles.