Cast principale
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