飞碟入侵地球

休·马洛

Dr. Russell A. Marvin

Joan Taylor

Carol Marvin

Donald Curtis

Maj. Huglin

Morris Ankrum

Brig. Gen. John Hanley

Thomas Browne Henry

Vice Adm. Enright

Grandon Rhodes

Gen. Edmunds

John Zaremba

Prof. Kanter

保罗·费斯

Alien (voice)

Frank Wilcox

Alfred Cassidy

Sydney Mason

Frank the garage man

拉里·J·布莱克

Motorcycle cop

Bert Stevens

Air Intelligence Command Officer