Scientist Dr. Bradford Crane and army general Thalius Slater join forces to fight an almost invisible enemy threatening America; killer bees that have deadly venom and attack without reason. Disaster movie-master Irwin Allen's film contains spectacular special effects, including a train crash caused by the eponymous swarm.
Brad Crane
Michael Caine
Capt. Helena Anderson
Katharine Ross
Gen. Thaddeus Slater
Richard Widmark
Dr. Hubbard
Richard Chamberlain
Maureen Schuester
Olivia de Havilland
Felix
Ben Johnson
Anne MacGregor
Lee Grant
Dr. Andrews
José Ferrer
Rita
Patty Duke
Jud Hawkins
Slim Pickens
Maj. Baker
Bradford Dillman
Maj. Clarance Tuttle
Fred MacMurray
Dr. Walter Krim
Henry Fonda
Gen. Thompson
Cameron Mitchell
Paul Durant
Christian Juttner
Dr. Newman
Morgan Paull
Dr. Martinez
Alejandro Rey
Pete Harris
Don 'Red' Barry
Woman Scientist
Elizabeth Rogers
Mrs. Durant
Doria Cook-Nelson
Mr. Durant
Robert Varney
Duty Officer
Ernie F. Orsatti
Sheriff Morrison
Patrick Culliton
Cameraman
John Furlong
Hal
Chris Petersen
Eddie
Jerry Toomey
Receptionist / Nurse
Barbara Costello
Nurse
Jenifer Taurins
Radioman
David Himes
Secretary
Mara Cook
Bee Boy
Joey Eisnach
Radarman
Stephen Powers
Lieutenant
Chris Capen
Officer #2
Tony Haig
Radarman #2
Bill Snider
Nurse
George Simmons
Sergeant
Arell Blanton
Radio Sergeant
Trent Dolan
Launching Officer
John Williams
Pilot #1
Steven Marlo
Mechanic
Phil Montgomery
Doctor
Jim Galante
Self
Frank Blair
Captain
Marcia Nicholson
Engineer
Arthur Space
Standby Engineer
Chuck Hayward
Chemical Warfare Guard
Glenn Charles Lewis
Radio Announcer
Art Balinger
Airman #1
Michael Sheehan
Airman #2
Howard Culver
Briefing Guest (uncredited)
Buzz Barbee
Dr. Moore (uncredited)
Ken Clayton
Train Passenger (uncredited)
Marneen Fields
Townsman (uncredited)
Bob Harks
Burning Man (uncredited)
Mike Johnson
Train Passenger (uncredited)
Jack Krupnick
Colonel's Son (uncredited)
Lawrence Moran
Briefing Guest (uncredited)
Monty O'Grady
Wild Lines (uncredited)
John Otrin
Briefing Guest (uncredited)
Leoda Richards
Briefing Guest (uncredited)
Norman Stevans