크레딧 출연 Albert Dekker Dr. Alexander Thorkel Thomas Coley Bill Stockton Janice Logan Dr. Mary Robinson Charles Halton Dr. Rupert Bulfinch Victor Kilian Steve Baker Frank Yaconelli Pedro Paul Fix Dr. Mendoza Frank Reicher Prof. Kendall Jane Webb Woman Billy Wilkerson Silent Indian 스텝 Ernest B. Schoedsack Directing Malcolm Stuart Boylan Writing Tom Kilpatrick Writing Merian C. Cooper Production Dale Van Every Production Gerard Carbonara Sound Henry Sharp Camera Ellsworth Hoagland Editing A. E. Freudeman Art William LeBaron Production Hans Dreier Art A. Earl Hedrick Art Robert Odell Art Charles Gemora Costume & Make-Up Hollingsworth Morse Directing Harry Lindgren Sound Richard Olson Sound Albert Hay Malotte Sound Ernst Toch Sound