Paul Sawtell was a Polish composer born on February 3, 1906. His most famous project is the TV series Voyage to the Bottom of the Sea (1964-1968). He died on August 1, 1971. Bert Shefter was a Russian composer born on May 15, 1902. His most famous project is the TV series Hawaiian Eye (1959-1963). He died on June 29, 1999. They composed several Intrada features jointly, including The Lost World (1960), Five Weeks in a Balloon (1962), and Jack the Giant Killer (1962).