莎莉·弗雷泽

Sally Fraser

饰：Joyce Manning

Roger Pace

Roger Pace

饰：Maj. Mark Baird

Duncan 'Dean' Parkin

Duncan 'Dean' Parkin

饰：Col. Glenn Manning (as Dean Parkin)

Russ Bender

Russ Bender

饰：Dr. Carmichael

Rico Alaniz

Rico Alaniz

饰：Sgt. Luis Murillo

乔治·贝尔瓦尔

George Becwar

饰：John Swanson

Robert Hernandez

Robert Hernandez

饰：Miguel

Charles Stewart

Charles Stewart

饰：Capt. Harris

June Jocelyn

饰：Mrs. Edwards

Loretta Nicholson

Loretta Nicholson

饰：Joan

Raymond Winston

饰：Arthur Lang

Jack Kosslyn

饰：Newscaster

George Navarro

George Navarro

饰：Mexican Doctor

Bob Garnet

Bob Garnet

饰：Pentagon Correspondent

Stan Chambers

饰：TV Announcer

June Burt

June Burt

Howard Wright

饰：Medical Research Officer

Mary Hennessy

Mary Hennessy

George Alexander

George Alexander

饰：Army Officer

Bill Giorgio

饰：Bus Driver

Hal Torey

饰：Health and Welfare Department Head

George Milan

George Milan

饰：Gen. Nelson

沃伦·福斯特

Warren Frost

饰：Operator (Switchboard)

Bob Tetrick

饰：(as Bob Tetrick)

Rod Dana

饰：Projectionist,(as Rod Dana)

Roy Gordon

饰：Mayor (uncredited)

William Hudson

饰：(archive footage) (uncredited)

格伦·兰甘

Glenn Langan

饰：Filmclips from 'The Amazing Colossal Man' (archive footage) (unc

Merritt Stone

Merritt Stone

饰：Cop (uncredited)

约翰·麦克纳马拉

John McNamara

饰：Neurologist