John Lawrence

Robert Clarke

Acting

Enid Elliot

Margaret Field

Acting

Prof. Elliot

Raymond Bond

Acting

Dr. Mears

William Schallert

Acting

Tommy the Constable

Roy Engel

Acting

Inspector Porter

David Ormont

Acting

Dr. Robert Blane

Gilbert Fallman

Acting

The Man from Planet X

Pat Goldin

Acting

Donal, a searcher

Tom Daly

Acting

Wife of Missing Man

June Jeffery

Acting