"After a group of young revolutionaries break into a company's corporate headquarters and steal $5,000,000 worth of heroin to keep it off the street, they call on San Francisco Police Lieutenant Virgil Tibbs for assistance."
Sidney Poitier
as Virgil Tibbs
Barbara McNair
as Valerie Tibbs
Gerald S. O'Loughlin
as Jack Pecora
Sheree North
as Mrs. Morgan
Fred Beir
as Bob Alford
Allen Garfield
as Benjy
Bernie Hamilton
as Lt. Jessop
Graham Jarvis
as William Martin
Raúl Juliá
as Juan Mendoza
Ron O'Neal
as Joe Peralez
James A. Watson, Jr
as Stacy Baker
Charles H. Gray
as George Morgan
Jarion Monroe
as Larry French
Daniel J. Travanti
as Sgt. Chassman
Billy Green Bush
as Dave Thomas
Max Gail
as Rudy
Ross Hagen
as Chet
Paul Jenkins
as Tony
John Lasell
as Zach Mills
Lani Miyazaki
as Annie Sekido
Garry Walberg
as Capt. Stacy
Demond Wilson
as Charlie Blossom
George Spell
as Andy Tibbs
Wanda Spell
as Ginny Tibbs
Richard C. Adams
as Dan
Johnny Haymer
as John Bishop
John Alvin
as Forensic Officer (uncredited)
Oscar Beregi Jr.
as Andre (uncredited)
Mark Tapscott
as Police Captain Grayson (uncredited)
Don Medford
Director
Gil Mellé
Original Music Composer
George B. Chan
Art Direction
Marvin March
Set Decoration
Del Armstrong
Makeup Artist
Elizabeth Searcy
Hairdresser
Clark L. Paylow
Production Manager
Jack N. Reddish
First Assistant Director
Les Sheldon
Second Assistant Director
Sam Gordon
Property Master
Howard Hester
Construction Coordinator
James F. McGuire
Set Designer
Ken Walker
Leadman
Milo B. Lory
Sound Editor
Robert Martin
Sound
Richard Portman
Sound Recordist
Don MacDougall
Sound Re-Recording Mixer
John Ball
Characters
Charles Rosher Jr.
Camera Operator
James R. Webb
Writer
Walter Mirisch
Producer
Joseph F. Biroc
Director of Photography
Ferris Webster
Editor
Lynn Stalmaster
Casting
Hal Needham
Stunts