Dr. Nookey is disgraced and sent to a remote island hospital. He is given a secret slimming potion by a member of staff, Gladstone Screwer, and he flies back to England to fame and fortune. But others want to cash in on his good fortunes, and some just want him brought down a peg or two.
Sid James
as Gladstone Screwer
Kenneth Williams
as Doctor Frederick Carver
Charles Hawtrey
as Doctor Ernest Stoppidge
Jim Dale
as Doctor Jimmy Nookey
Joan Sims
as Ellen Moore
Barbara Windsor
as Goldie Locks aka Maud Boggins
Hattie Jacques
as Matron
Patsy Rowlands
as Miss Fosdick
Peter Butterworth
as Shuffling Patient
Elizabeth Knight
as Nurse Willing
Alexandra Dane
as Stout Woman
Peter Gilmore
as Henry