크레딧 출연 Marvin Miller Narrator (voice) 스텝 Robert Cannon Directing Gail Kubik Sound Dr. Seuss Writing Frank Smith Visual Effects Willis Pyle Visual Effects Stephen Bosustow Production John Hubley Visual Effects William T. Hurtz Art Rudy Larriva Visual Effects Bill Scott Writing Phil Eastman Writing Pat Matthews Visual Effects Jules Engel Visual Effects Adrian Woolery Production Bill Melendez Visual Effects