William Hartnell as Sergeant Grimshawe

Bob Monkhouse as Charlie Sage

Shirley Eaton as Mary Sage

Eric Barker as Captain Potts

Dora Bryan as Norah

Bill Owen as Corporal Bill Copping

Charles Hawtrey as Peter Golightly

Kenneth Connor as Horace Strong

Kenneth Williams as James Bailey

Terence Longdon as Miles Heywood

Norman Rossington as Herbert Brown

Gerald Campion as Andy Calloway

Hattie Jacques as Captain Clark

Cyril Chamberlain as Gun Sergeant

Arnold Diamond as Fifth Specialist

Gordon Tanner as First Specialist

Terry Scott as Sgt Paddy O'Brien

Edward Judd as Fifth Storesman

Bernard Kay as Injured Recruit

Jack Smethurst as First Recruit

Ed Devereaux as Sgt. Russell

Martin Boddey as Sixth Specialist

Frank Forsyth as Second Specialist

Ian Whittaker as Medical Corporal

Basil Dignam as Third Specialist

Anthony Sagar as Stores Sergeant

John Gatrell as Fourth Specialist

Alec Bregonzi as First Storesman

Graham Stewart as Second Storesman

Leigh Madison as Sheila

Haydn Ward as Eighth Recruit

Graydon Gould as Ninth Recruit

Don McCorkindale as Third Recruit

Leon Eagles as Fourth Recruit

Patrick Durkin as Sixth Recruit

Derek Martinus as Recruit

James Villiers as Seventh Recruit

Pat Feeney as Fourth Storesman

Alexander Harris as Third Storesman

John Matthews as Sergeant Matthews

Ronald Clarke as Sixth Storesman

David Williams as Seventh Storesman

Brian Jackson as Second Recruit

Jeremy Dempster as Tenth Recruit

Terry Dickenson as Eleventh Recruit

Malcolm Webster as Fifth Recruit

Henry Livings as Twelfth Recruit

Michael Hunt as Fourteenth Recruit