 Curd JürgensKapitän Markus Jolly | Kapitän Markus Jolly |
 Heinz ReinckeOliver Kniehase | Oliver Kniehase |
 Johanna von KoczianDr. Katrin Andersen | Dr. Katrin Andersen |
 Herbert FleischmannNico | Nico |
 Sieghardt RuppRodrigo | Rodrigo |
 Angelika OttAngelika | Angelika |
 Christine SchuberthVroni | Vroni |
 Ilse PeternellLisbeth | Lisbeth |
 Fritz TillmannKonsul Armin von Prossnitz | Konsul Armin von Prossnitz |
 Gerhart LippertKlaus Ritter | Klaus Ritter |
 Rolf OlsenPolizeipräsident Herculano | Polizeipräsident Herculano |
 Friedrich JoloffDr. Albeniz | Dr. Albeniz |
| EEmilio SchuberthGilbert Paon | Gilbert Paon |
| JJames GraserJames Sanders | James Sanders |
 Elisabeth FlickenschildtLady Scarlett | Lady Scarlett |
 Poldo BendandiChief Tax Officer (uncredited) | Chief Tax Officer (uncredited) |
 Beryl CunninghamChiquita (uncredited) | Chiquita (uncredited) |
 Thomas DannebergKlaus Ritter (voice) (uncredited) | Klaus Ritter (voice) (uncredited) |
 Hans HesslingPolizeipräsident Herculano (voice) (uncredited) | Polizeipräsident Herculano (voice) (uncredited) |
| GGerda-Maria JürgensFrau Kuschke (uncredited) | Frau Kuschke (uncredited) |
 Giulio MarchettiDr. Castell (uncredited) | Dr. Castell (uncredited) |
 Lenka NovakNurse (uncredited) | Nurse (uncredited) |
 Janine ReynaudWoman in Cabin of Yacht (uncredited) | Woman in Cabin of Yacht (uncredited) |
 Bill VandersJolly's Crewman (uncredited) | Jolly's Crewman (uncredited) |
 Ernest Van-Mohr(uncredited) | (uncredited) |
