Casablanca - Humphrey Bogart & Ingrid Bergman as Ilsa Lund. Bergman's official website calls Ilsa her "most famous & enduring role". Film critic Roger Ebert called her "luminous", and commented on the chemistry between her and Bogart: "she paints his face with her eyes". Other actresses considered for the role of Ilsa included Ann Sheridan, Hedy Lamarr & Michèle Morgan. Wallis obtained the services of Bergman, who was contracted to David O. Selznick, by lending Olivia de Havilland in exchange.