Actors

Actor

Lt. Cmdr. John 'Twill' Twillinger

Actor

Gail MacKenzie

Actor

Dr. Jess Rogers

Actor

Jody Simms

Actor

Dr. Tad Johns

Actor

Lt. Robert 'Clem' Clemens

Actor

Sheriff Josh Peters

Actor

Sandy MacKenzie

Actor

Connie Blake

Actor

Seaman Fred Johnson

Actor

Sally

Actor

George Blake (lab assistant)

Actor

Mrs. Simms

Actor

Lewis Clark Dobbs

Actor

Seaman Wyatt (Radioman)

Actor

Seaman Morty Beatty

Actor

Monster Victim

Actor

Deputy Larry

Actor

Admiral Greenhouse

Actor

Deputy Scotty