Ted Holliday

Lorne Greene

Capt. Grant 'Mitch' Mitchell

Rupert Davies

Alphonso - Italian Ship's Engineer

Jack MacGowran

Sean, Irish Deck Hand

Paul Carpenter

Johnny

Michael Balfour

Alphonso Italian Ship's Engineer

Oscar Quitak

Scapin Erart Amelotti

Bruno Barnabe

Brigadier Peter Kleber

Betty McDowall

Paulette Nermine

Christopher Lee

Yusif Carnot

Robert Cawdron

Patron Demetrios