
"New thrills! New shocks! New terror!"
An attractive reporter investigating the mysterious destruction of an Illinois town stumbles upon a secret government laboratory conducting radiation experiments on vegetables. The lead scientist is eager to help find out what happened. Together they discover that giant grasshoppers are behind the devastation. Worse yet, thousands of them are headed toward Chicago! Can they be stopped... or is this the BEGINNING OF THE END?
Dr. Ed Wainwright

Audrey Aimes

Gen. John Hanson

Frank Johnson

Col. Tom Sturgeon

Cpl. Mathias

Capt. James Barton

Maj. Everett
State Police Car 254 Officer

Roadblock Sergeant

William's Date

Frank, grainary platoon soldier
Gen. Short

Editor Norman Taggart
William Summerfield, teen boy
Lieutenant
Dave

Observation Post #3 Soldier
Observation Post #1 Soldier
Observation Post #2 Soldier
Chuck, granary platoon soldier

Bomber Pilot

TV Announcer (uncredited)

Helicopter Pilot (uncredited)

Soldier (uncredited)

Red Cross Representative
Army Sentry (uncredited)

Helicopter Pilot (voice)

Police Lt. MacKenzie (uncredited)

Police Dispatcher KLP646

Roadblock Sentry Confiscating Camera

Agricultural Agent
Man with Red Cross Representative [extra]

Col. Hill [bit]

Headquarters Sergeant