About U-Boat 39 the first U-Boat sunk in WW2 by the UK Carrier Ark Royal.
| Actor | Role |
|---|---|
 Eva DahlbeckMaria Friberg | Maria Friberg |
 Karl-Arne HolmstenHerman Friberg | Herman Friberg |
 Gunnel BroströmAnna | Anna |
 Lars EkborgGunnar Friberg | Gunnar Friberg |
 Harriet AnderssonHarriet, Gunnar's girlfriend | Harriet, Gunnar's girlfriend |
 Lennart LindbergCaptain Sundström | Captain Sundström |
 Erik HellFirst Mate | First Mate |
 Ove TjernbergCrew member | Crew member |
 Gunnar HellströmHarriet's escort | Harriet's escort |
 Bibi AnderssonGirl on a train | Girl on a train |
 Bengt BlomgrenNavy officer | Navy officer |