Peter Dyneley

Narrator / Parisian Radio Operator (voice) (uncredited)

Ezra Meade

Captain

Larry Stanford

Lloyd Greener

Commander Jenkins (uncredited)

Jeff Tracy (voice)

Midger

Willy Reichel

Tony Roscoe

Balkov

Miller

Jeff Tracy (voice)

Lady Anthea's Husband (uncredited)

Robert Hathaway

Lord St Erth

Regan (uncredited)

Dr. Rene Normand

Mr. Washington

Dr. Morrow

David Garrick

Jeff Tracy / Commander Norman / Interceptor One Pilot (voice)

Jeff Tracy (voice)

Arthur Hayes

German Officer #1

Escalus, Prince of Verona

Tom

Jeff Tracy / Professor Heinz Bodman (voice)

Uncle George

Mark Lemming

-

Col. Golchenko

The Investigator (voice)

Paul Verrier

-

Lord St. Erth

-

Len Hickman

LeRoy

Lord Alistair Abdington

-

Pat Tarley

Baron Mauray

-

-

-

Hadley

Red Darrow

Commander Charles Hastings

Jeff Tracy (voice)

-

Commander Charles Hastings

Von Bulow