You're Only Young Twice!
Cast
Charles Hawtrey
Adolphus Hayman
Archie Duncan
Police Constable
Duncan Macrae
Professor "Haywire" Hayman
Diane Hart
Ada Shore
Ronnie Corbett
Maither
Reginald Beckwith
Radio reporter
Russell Waters
Professor Baikie
Roddy McMillan
Milligan
Andrew Downie
Student
Patrick Barr
Sir Archibald Asher
Robert Urquhart
Sheltie
Alastair Hunter
Desk Sergeant
Joseph Tomelty
Connell O'Grady aka Dan McEntee