After the war, Todd was unsure what direction to take in his career. His former agent, Robert Lennard, had become a casting agent for Associated British Picture Corporation and advised him to try out for the Dundee Repertory Company. Todd did so, performing in plays such as "Claudia", where he appeared with Catherine Grant-Bogle, who became his first wife. Lennard arranged for a screen test and Associated British offered him a long-term contract in 1948. He was cast in the lead in "For Them That Trespass" (1949), directed by Alberto Cavalcanti. The film was a minor hit and Todd's career was launched.