At the Earth's Core

Doug McClure as David Innes Peter Cushing as Dr. Abner Perry Helen Gill as Maisie Anthony Verner as Gadsby Caroline Munro as Princess Dia Cy Grant as Ra Godfrey James as Ghak Sean Lynch as Hoojah Keith Barron as Dowsett Robert Gillespie as Photographer

Alan Hume Director of Photography Edgar Rice Burroughs Novel Milton Subotsky Screenplay, Producer Kevin Connor Director