Earth vs. the Flying Saucers

Dr. Russell A. Marvin

Carol Marvin

Maj. Huglin

Brig. Gen. John Hanley

Vice Adm. Enright

Gen. Edmunds

Prof. Kanter

Alien (voice)

Alfred Cassidy

Frank the garage man

Motorcycle cop

Air Intelligence Command Officer

Military Officer at Experiment

Officer/Civilian at Military Conference