Balloon unit WAAFs catch German spies.
| Actor | Role |
|---|---|
| EEthel RevnellEthel | Ethel |
| GGracie WestGracie | Gracie |
 Ronald ShinerSergeant Shiner | Sergeant Shiner |
| DDonald PeersSergeant Jim | Sergeant Jim |
 Gordon McLeodThe Doctor | The Doctor |
| GGertrude Maesmore MorrisLady Hurst | Lady Hurst |
 Elsie WagstaffThe Welfare Officer | The Welfare Officer |
| EEsma LewisSergeant Agnes | Sergeant Agnes |
| MMiles SilvertonThe Commanding Officer | The Commanding Officer |