| Kenneth Connor |
O/S Blissworth |
| Eric Barker |
Captain David Foster |
| Leslie Phillips |
Lt Cdr Bill Fanshawe |
| Joan Sims |
Ann Foster |
| Noel Purcell |
Admiral Sir Humphrey Pettigrew |
| Hattie Jacques |
Agatha Potter |
| Spike Milligan |
Ranjit, Indian Electrician |
| Eric Sykes |
English Electrician |
| Sid James (as Sidney James) |
Chief Petty Officer Mundy |
| David Lodge |
Dockyard Security Sergeant |
| Victor Maddern |
1st Sailor |
| Ed Devereaux |
Commander Phillips |
| Robin Ray |
Flag Lieutenant |
| George Street |
2nd Dockyard Security Guard |
| Peter Howell |
Admiral's Secretary |
| Arch Taylor |
Coxswain |
| Michael Brennan |
1st Dockyard Security Guard |
| Leila Williams |
WREN Driver |
| Richard Bennett |
Officer of the Day |
| Rory Macdermot |
3rd Dockyard Security Guard |
| Eric Corrie |
Engineer Officer |
| Carl Conway |
Actor |
| Hedley Colson |
Actor |
| Walter Kavan |
Actor |
| Raf Jover |
Actor |
| Jack Smethurst |
Actor |
| Dickie Owen |
Actor |
| John Mathews |
Actor |
| Bill Cartwright |
Actor |
| Peter Byrne |
Actor |
| Ivor Danvers |
Actor |
| Charles Vance |
Actor |
| Michael Nightingale |
Actor |
| Michael Julian |
Actor |