The Monster That Challenged the World

A new kind of terror to numb the nerves!

Giants Mollusks are released from the earth by an earthquake and start killing people.

Horror Science Fiction

Tim Holt

(Lt. Cmdr. John 'Twill' Twillinger)

Audrey Dalton

(Gail MacKenzie)

Hans Conried

(Dr. Jess Rogers)

Barbara Darrow

(Jody Simms)

Max Showalter

(Dr. Tad Johns)

Harlan Warde

(Lt. Robert 'Clem' Clemens)

Gordon Jones

(Sheriff Josh Peters)

Mimi Gibson

(Sandy MacKenzie)

Marjorie Stapp

(Connie Blake)

Jody McCrea

(Seaman Fred Johnson)

Wallace Earl

(Sally)

Dennis McCarthy

(George Blake (lab assistant))

Sarah Selby

(Mrs. Simms)

Milton Parsons

(Lewis Clark Dobbs)

Charles Tannen

(Seaman Wyatt (Radioman))

Robert Benevides

(Seaman Morty Beatty)

John Carlyle

(Monster Victim)

John Close

(Deputy Larry)

William Forrest

(Admiral Greenhouse)

Gil Frye

(Deputy Scotty)

Joseph Hamilton

(Other Lock Watchman)

Charles Herbert

(Boy with Morty's Cap)

Byron Kane

(Coroner Nate Brown)

Ralph Littlefield

(Gatekeeper)

David McMahon

(Patterson)

Ralph Moody

(Watchman at Lock 57)

William Swan

(Seaman Howard Sanders)

Hal Taggart

(Davis - Resort Owner)

Mack Williams

(Captain Masters)

Dan Gachman

(Deputy Brewer)

Michael Dugan

(Clarke)