"Three London gentlemen take a vacation rowing down the Thames, encountering various mishaps and misadventures along the way."
Jimmy Edwards
as Harris
Laurence Harvey
as George
David Tomlinson
as J
Shirley Eaton
as Sophie Clutterbuck
Lisa Gastoni
as Primrose Porterhouse
Jill Ireland
Campbell Cotts
as Ambrose Porterhouse
Martita Hunt
as Mrs. Willis
Adrienne Corri
as Clara Willis
Joan Haythorne
as Mrs. Porterhouse
Noelle Middleton
as Ethelbertha
Charles Lloyd Pack
as Mr. Quilp
Robertson Hare
as Photographer
Kenneth Williams
as Maze Attendant (uncredited)
A.E. Matthews
as 1st Old Gentleman
Miles Malleson
as 2nd Old Gentleman
Ernest Thesiger
as 3rd Old Gentleman
Norman Rossington
as Boy Lover
Esma Cannon
as Meek Woman (Maze)
Pat Lanski
as Woman Pianist
Christian Duvaleix
as Man Pianist
Mark Hashfield
as Bowler (Cricket Match)
Graham Curnow
as Captain (Cricket Match)
Stuart Saunders
as Dad (Henley Regatta)
Margaret St. Barbe West
as Mum (Henley Regatta)
Shane Cordell
as Girl Lover
Alice Bowes
as Auntie
Oswald Laurence
as Cocky Young Man
Rhett Ward
as Man in Sailing Dinghy
George Woodbridge
as Policeman
Toke Townley
as Meek Man (Maze)
Peggy Ann Taylor
as Gertrude (Maze)
Michael Barber
as Harold (Maze)
Julia Nelson
as Young Mother (Maze)
Judith Warden
as Large Woman (Maze)
Harold Goodwin
as Maze Keeper (Maze)
Carl Bernard
as Tall Man (Maze)
Hal Osmond
as Cabbie (Ext. J's House)
Ken Annakin
Director
Hubert Gregg
Screenplay
Jerome K. Jerome
Book
Vernon Harris
Ray Hearne
Still Photographer
John Addison
Original Music Composer
Eric Cross
Director of Photography