Sarah Frances Marie Martinot was an American actress and soprano singer who performed on stage in dramas, musical comedy and comic opera. Her career began at the age fifteen as Cupid in Ixion; or, the Man at the Wheel and, but for a few years absence, she remained active on stage in America and abroad until 1908. She was the first to play Hebe in an American production of H.M.S. Pinafore, the first Katrina in the comic opera Rip Van Winkle and the first to play the title role in an English adaptation of the operetta Nanon. Late in her life Martinot would fall victim to mental illness and spend her last few years confined to psychiatric institutions.