You're Only Young Twice!

Duncan Macrae

Professor "Haywire" Hayman

Joseph Tomelty

Connell O'Grady aka Dan McEntee

Patrick Barr

Sir Archibald Asher

Charles Hawtrey

Adolphus Hayman

Diane Hart

Ada Shore

Robert Urquhart

Sheltie

Edward Lexy

Lord Carshennie

Jacqueline Mackenzie

Nellie Kelly

Eric Woodburn

The Bedellus

Molly Urquhart

Lady Duffy

Ronnie Corbett

Maither

Reginald Beckwith

Radio reporter

Russell Waters

Professor Baikie

Wendy Noel

Miss Mear

Roddy McMillan

Milligan

Alastair Hunter

Desk Sergeant

Andrew Downie

Student

Archie Duncan

Police Constable

Ray Simm

Art Direction

Bernard Gribble

Editor

Muir Mathieson

Conductor

Jack Causey

Assistant Director

Reginald Beckwith

Writer

James Bridie

Theatre Play

John Baxter

Production Controller

Barbara K. Emary

Associate Producer

John Grierson

Executive Producer

Lindsay Galloway

Adaptation, Writer

Terry Bishop

Writer, Director

Arthur Graham

Camera Operator

Barbara Cole

Continuity

Cedric Thorpe Davie

Music

Jimmy Evans

Makeup Artist

Jo Jago

Director of Photography

George Burgess

Sound Supervisor

Len Page

Sound Recordist

Amy Binney

Wardrobe Supervisor

Bill Kirby

Production Manager