Children worldwide know his warm, quavering voice as the Sultan in Disney's Aladdin (1992), but Douglas Seale (1913-1999) had already lived several theatrical lives. A Londoner trained at the Royal Academy of Dramatic Art, he debuted professionally in 1934, served in the Royal Corps of Signals during World War II, then spent two seasons with the Shakespeare Memorial Theatre at Stratford-upon-Avon…