UFO

Ed Straker

Nina Barry

Paul Foster

SHADO Operative / SHADO Radio Operator

Alec Freeman

SHADO Radio Operator / Keith Ford

Joan Harrington

Doug Jackson

Gay Ellis / Lt. Ellis

Skydiver Engineer / Masters

Lew Waterman

Virginia Lake

James Henderson / General Henderson

Miss Ealand

Gordon Maxwell / Skydiver Navigator Lt. Gordon Maxwell

Sylvia Howell

Mark Bradley

Peter Carlin / Capt. Carlin

Nurse / Moonbase Operative Carol Miller

Steve Minto / Capt. Steve Minto

SHADO Radio Operator Tamara Paulson / Skydiver Operative

Dr. Shroeder

Dr. Frazer / Doctor

Bill Johnson / CIA Agent