The crew of PT-73 are in trouble again when Ensign Parker is mistaken for a pilot and gets shanghied into the Air Force.
| Actor | Role |
|---|---|
 Joe FlynnCaptain Wallace B. Binghamton | Captain Wallace B. Binghamton |
 Tim ConwayEnsign Charles Parker | Ensign Charles Parker |
 Bob HastingsLt. Elroy Carpenter | Lt. Elroy Carpenter |
 Gary VinsonQuatermaster George Christopher | Quatermaster George Christopher |
 Billy SandsMotor Machinist Mate Harrison Bell | Motor Machinist Mate Harrison Bell |
| EEdson StrollVirgil Edwards | Virgil Edwards |
| YYoshio YodaTakeo 'Fuji' Fugiwara | Takeo 'Fuji' Fugiwara |
 Gavin MacLeodSeaman Joseph Haines | Seaman Joseph Haines |
 Tom TullyGen. Harkness | Gen. Harkness |
 Ted BessellLt. Wilbur Harkness | Lt. Wilbur Harkness |
 Jean HaleSgt. Madge Collins | Sgt. Madge Collins |
 Jacques AubuchonDimitri | Dimitri |
 Len LesserNKVD commissar | NKVD commissar |
 MakoJapanese Submarine Captain (uncredited) | Japanese Submarine Captain (uncredited) |
| BBerkeley HarrisVogel | Vogel |