Her acting roles were primarily in the theatre and in television movies. Her most successful appearances on the stage were during the 1940s, in Shadow and Substance, Claudia, and Lady Precious Stream, and she appeared at the Comédie-Française as well as The Old Vic. She made a big success in New York in 1949 playing Anne Boleyn opposite Rex Harrison as Henry VIII in Maxwell Anderson's play Anne of the Thousand Days, and, in 1955, she joined Stratford-upon-Avon's Shakespeare Memorial Theatre to play Helena in All's Well That Ends Well and Mistress Ford in The Merry Wives of Windsor. In 1974, Redman played Sophie Dupin, the mother of George Sand, in the BBC serial Notorious Woman.