- Mike Hodgesdirector (uncredited)
- Harvey Bernhardstory by
- David Seltzerbased on characters created by
- Stanley Mannscreenplay by and
- Mike Hodgesscreenplay by (as Michael Hodges)
- Allan Arbus(as Alan Arbus)
- Sorin Serene Pricopie(as Sorin Pricopie)
Rest of cast listed alphabetically
- Ian Hendry(uncredited)
- Gus Kaprales(uncredited)
- Leo McKern(uncredited)
- Pat Tanzillo(uncredited)
- Harvey Bernhardproducer (produced by)
- Joseph Lenziassociate producer (as Joseph 'Pepi' Lenzi)
- Mace Neufeldexecutive producer (uncredited)
- Charles Ormeco-producer
- Jerry Goldsmithcomposer (music)
- Bill Butlerdirector of photography
- Robert Browneditor (as Robert Brown Jr.) (edited by)
- Lynn Stalmastercasting director (casting by)
- Fred Harpmanproduction designer (production designed by)
- Philip M. Jefferiesproduction designer (production designed by)
- Robert De Vestelset decorator (Los Angeles)
- Robert Dawnmakeup artist: Los Angeles
- Lillian Tothhairdresser: Chicago / makeup artist: Chicago
- Joseph Lenziproduction manager: Los Angeles (as Joseph 'Pepi' Lenzi)
- Jerry Ballewfirst assistant director: Los Angeles
- Bob Dahlinsecond assistant director: Chicago
- Al Nicholsonfirst assistant director: Los Angeles
- Richard Luke Rothschildsecond assistant director: Los Angeles
- Wendell Franklinassistant director (uncredited)
- Robert De Vestelset decorator: Los Angeles (as Robert de Vestel)
- William B. Fosserassociate set decorator: Chicago (as William Fosser)
- Bill MacSemsproperty master: Los Angeles
- Hendrik Wynandsconstruction coordinator: Los Angeles
- William Hartmansound editor: Los Angeles
- Godfrey Marksdialogue editor: Los Angeles
- Al Overtonproduction mixer: Los Angeles
- Edward Rossisound editor: Los Angeles
- Theodore Soderbergrerecording mixer: Los Angeles
- Richard Sperbersound editor: Los Angeles (as Richard A. Sperber)
- Paul Wellsrerecording mixer: Los Angeles
- Douglas O. Williamsrerecording mixer: Los Angeles
- Ira Anderson Jr.special effects: Los Angeles
- Stanley Cortezminiatures photographer
- Bill Hansardprocess coordinator: Los Angeles
- Chuck Taylorminiatures
- Max Klevenstunt coordinator: Los Angeles
- Jerry Brutschestunts (uncredited)
- Fritz Fordstunts (uncredited)
- Kitty O'Neilstunts (uncredited)
- Sorin Serene Pricopiestunts (uncredited)
- Derek V. Brownephotography assistant: Israel (as Derek Browne)
- Colin J. Campbellgaffer: Los Angeles (as Colin Campbell)
- James R. Connellcamera operator: Los Angeles (as James Connell)
- Stanley Cortezminiatures photographed by
- John D. Credediogaffer: Chicago (as John Crededio)
- Al Giddingsunderwater photography: Los Angeles
- George Hillkey grip: Los Angeles
- Peter Kuttnersecond assistant camera: Chicago
- Robert McLainkey grip: Chicago (as Robert McLaine Jr.)
- Ed Nielsenassistant cameraman: Chicago
- Burton Millerclothes: Miss Grant
- Ray Summerswardrobe: Los Angeles
- David Garfieldassistant editor: Los Angeles
- Willie Navarroassistant editor: Los Angeles
- Leonard A. Engelmusic editor: Los Angeles (as Len Engel)
- Sandy De Crescentmusic contractor (uncredited)
- Robert Fernandezmusic scoring mixer (uncredited)
- Jerry Goldsmithscore producer (uncredited)
- Ralph Griersonmusician: keyboards (uncredited)
- Kenneth Hallmusic editor (uncredited)
- Skaila Kangamusician: harp (uncredited)
- Malcolm McNabmusician: trumpet (uncredited)
- Arthur Mortonorchestrator (uncredited)
- National Philharmonic Orchestramusic performed by (uncredited)
- James Hogantransportation captain: Chicago
- Ray Berwickraven trainer: Los Angeles
- Alan Ladd Jr.presenter
- Rusty Lemorandeproduction assistant: Chicago
- Audrey Levyproduction assistant: Chicago
- W. Steuart McBirnietechnical advisor (as Dr. W.S. McBirnie Ph.D.)
- H. Bud Ottoscript supervisor: Los Angeles
- Zach Staenbergproduction assistant: Chicago
- Cornelius Morganspecial thanks: Chicago Police Department (as Sergeant Cornelius Morgan)
- Lucy Salengerspecial thanks: State of Illinois Film Office
Crew verified as complete
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