크레딧 출연 클래런스 내시 Donald Duck (voice) (uncredited) Billy Bletcher Pegleg Pete (voice) (uncredited) John McLeish Jupiter / Vulcan (voice) (uncredited) 스텝 Jack Hannah Writing Carl Barks Writing 월트 디즈니 Production Andy Engman Visual Effects Paul Allen Visual Effects Jack King Directing Ed Love Visual Effects Ray Patterson Visual Effects