The Monster That Challenged the World

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

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Harlan Warde

Lt. Robert 'Clem' Clemens

Gordon Jones

Sheriff Josh Peters

Mimi Gibson

Sandy MacKenzie