 Edward UnderdownPhilip | Philip |
 Ralph ClantonDavid | David |
 Helen CherryWilhelmina | Wilhelmina |
| SStella AndrewJane | Jane |
 Michael BrennanSmoke O'Connor | Smoke O'Connor |
 Michael TrubshaweMajor Bushey Noble | Major Bushey Noble |
| RRupert GerardEarl of Bentham | Earl of Bentham |
 Desmond Llewelyn'77 Jones | '77 Jones |
 Anthony DawsonMichael | Michael |
 Estelle BrodyWar Correspondent | War Correspondent |
 Christopher LeeChris Lewis | Chris Lewis |
 Robert AyresAmerican Brigadier | American Brigadier |
 Peter BurtonMinor Role | Minor Role |
| JJohn Wynn'45 Jones | '45 Jones |
 Rufus CruikshankSergeant Dean | Sergeant Dean |
| RR.S.M. BrittainRegimental Sergeant Major | Regimental Sergeant Major |
| AAlvin FloydButch | Butch |
| IIain MurrayCommanding Officer | Commanding Officer |
| DDavid RoseThe General | The General |
| JJacqueline RobertBelgian Girl | Belgian Girl |
| GGene PriceTex | Tex |
 William SylvesterAmerican Soldier (uncredited) | American Soldier (uncredited) |
 Stanley MaxtedSelf (voice) | Self (voice) |
| Peter BurtonBritish Officer Listening to Sermon (uncredited) | British Officer Listening to Sermon (uncredited) |
 Guido LorraineFrench Waiter (uncredited) | French Waiter (uncredited) |
 Bill NagyAmerican Officer (uncredited) | American Officer (uncredited) |
 Ronan O'CaseyAmerican Officer (uncredited) | American Officer (uncredited) |
 Elizabeth II of the United KingdomSelf (archive footage) (uncredited) | Self (archive footage) (uncredited) |
