Iwao Takamoto also earned dozens of credits as an animator and designer after immigrating to the United States from Japan and learning animation while imprisoned with his family in a World War II Japanese-American prison camp. According to the Associated Press' obituary, he named Scooby-Doo after the gibberish at the end of Frank Sinatra's song "Strangers In The Night." He began his career with Disney but moved onto Hanna-Barbera to work on, among other characters, Astro from The Jetsons.